Chemical Reactions and Equations

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Questions

• Question #fee47
• Question #c5c15
• Question #19eb9
• Question #e2ea2
• Question #bc751
• Question #e2ea6
• Question #08b07
• What is the thermochemical equation for the combustion of benzene?
• Why are chemical reactions reversible?
• Why are chemical reactions important?
• Why do chemical reactions happen?
• How is a chemical reaction affected by the addition of a catalyst?
• How can chemical reactions be started?
• How can chemical equations be classified?
• How can chemical reactions affect the decomposition of important nutrients in food?
• How are chemical reactions involved in the transformation of matter?
• What are some common mistakes students make with chemical equations?
• What are some examples of chemical equations?
• What are some examples of chemical reactions?
• What are chemical reactions?
• What is the balanced equation for ammonium carbonate is heated, it decomposes into ammonia gas, carbon dioxide gas, and water vapor?
• Question #39f31
• Why does iron(II) oxide react with aluminium even though it is stable?
• Question #7725c
• Question #ed921
• Question #53a00
• What type of reaction involves the breakdown of a molecule by the addition of water?
• Question #4973e
• Question #4b820
• Question #1b0e4
• Question #f25e9
• Question #f3760
• Question #880a8
• How do we use bromine water to distinguish among saturated hydrocarbons, unsaturated hydrocarbons, and phenols?
• Question #37ef7
• Question #db5d9
• Question #0d88f
• Question #8053f
• Question #1935e
• In what process do animals use glucose and oxygen?
• Question #2343f
• Question #2a780
• Question #b6ba3
• Question #5df0b
• How do you predict the products of #"H"_2"SO"_4" + NaOH"#?
• Question #480c6
• How does combustion of hydrocarbons work?
• Question #a5bf2
• Question #76b91
• 0.495g of Al foil and dissolves it w/ 25.3mL of 1.4M of KOH. After cooling, the student adds 11.9 mL of 9.0 M H2SO4. What is the molar mass of alum?
• What is the net ionic equation of the reaction of MgSO4 with Pb(NO3)2?
• What is produced when #CH_3CONH_2# reacts with NaOBr? Is NaOBr a product of (or equivalent to) #Br_2 + NaOH# which are used in the Hoffmann bromamide degradation reaction?
• Question #60406
• What steps can you do to figure out a chemical reaction from Dalton's gas law if given only the data? P atm= 656.7, T h20= 27 C, V initial= 0.30 mL, V final = 17.05 mL and mass of Alka-seltzer 0.123g.
• Which substance in the reaction below either appears or disappears the fastest? 4NH3 +7O2 ---> 4NO2 +6H2O a) NH3 b)O2 c)NO2 d)H20
• Question #970d8
• Question #52f16
• I did a Magnesium Oxide Lab.Magnesium often reacts with nitrogen in the air. If some of the magnesium had reacted with the nitrogen, would it make the % composition of ur sample higher or lower than it should be? Explain (Hint-Try a sample calculation).
• Can ammonia complex with copper or chromium?
• Question #14e38
• Question #6649f
• Why is FeCl3 the product, when Fe and Cl2 reacts and not FeCl2?
• Question #76dc3
• Question #75aa6
• Question #0e2bc
• Question #54277
• Question #32ecf
• Question #f3172
• Why is the oxidation of aluminum metal by hydrochloric acid exothermic?
• Question #d5e3a
• Question #d5e4a
• Question #86f84
• Question #9390e
• What are the products of the reaction between silver and a solution of gold(I) nitrate? Between solutions of nitric acid and sodium hydrogen carbonate?
• Question #d758e
• Question #fda13
• Question #3d17d
• Question #3447f
• Question #0bcc2
• Question #8a5f1
• Question #100fc
• Which of the following doesn't give a precipitate when dil.HCl is added? 1. NaAlO2 2. Na2ZnO2 3. BiOCl 4. AgNO3 5. NaOCl
• Question #9df55
• How does carbon dioxide react with limewater ?
• (i)CH3CH3 + Cl2→CH3CH2Cl+HCl (ii)CH3CH(OH)CH→CH3CH=CH2+H2O (iii)CH3CHO+HCN→CH3CH(OH)CN (iv)CH3CH=CH2+HBr→CH3CHBrCH3 (v)CH3CH2C(OH)=CH2→CH3CH2COCH3 State the reaction type?
• Is common salt soluble in all types of water?
• Question #395a2
• The product of reacting an alkene with #"Br"_2(aq)# is #"C"_2"H"_4"BrOH"#. What is its name? Why is the product NOT a geminal dibromide?
• Question #92543
• Question #25e82
• How does iron react with oxygen?
• Question #886b4
• Question #65d03
• Question #b14df
• Question #19208
• What process produces ammonia?
• What is the correct order of reagents needed for the following transformation? Write the correct sequence #CH_3-CH_2CH_2Br -> CH_3-CH_2-CH_2-S-CH_2-CH(CH_3)_2 #
• What would be the product of 1-bromopropane with Mg in diethyl ether??
• Question #7ba2d
• Question #a98a1
• Question #62bc6
• What is the net ionic equation for the formation of #Fe(OH)_3# from #"ferric nitrate"# and #"sodium hydroxide"#?
• Question #9d1d8
• Question #36d03
• Could the Martian atmosphere, which consists mostly of carbon dioxide, be converted to give oxygen gas?
• Complete the equation & identify the type of reaction involved: #(CH_3) CH- Br# + aq. #KOH#?
• Question #7a5cd
• Question #444cf
• What happens when aqueous solutions of calcium chloride and of sodium carbonate are mixed?
• How would magnesium oxide, and calcium react with water?
• What is the product of reaction of 3 hexanone with 1, 3 propanediol???
• What is the product of reaction of 4-methyl -3-hexanone with aminobutane??
• What are the two parts of a chemical reaction?
• How is nitric acid supplied, and how does it react with sulfuric acid?
• How many different chemical reactions can a single enzyme catalyze?
• What is an example of an everyday chemical reaction?
• What are 5 types of chemical reactions?
• What happens during a chemical reaction?
• How do enzymes affect chemical reactions?
• What does an enzyme do in a chemical reaction?
• What is an indicator that a chemical reaction has taken place?
• What is the difference between chemical reactions and chemical equations?
• What happens to atoms during chemical reactions?
• How are the chemical reactions of photosynthesis and cellular respiration connected?
• What chemical reactions produce energy as heat?
• Why do chemical reactions occur?
• What part of the atom is involved in chemical reactions?
• Is photosynthesis a chemical reaction?
• Are bubbles an indicator of a chemical reaction?
• In a chemical reaction, what is the mass of the products?
• What is an example of a combustion reaction?
• What are the products of a combustion reaction?
• What is the chemical equation to show the combustion reaction of ethanol?
• How do I write equation for the combustion of CH4 to give CO2 and water?
• How would you balance the combustion reaction between octane and oxygen: 2C8H18 + O2 → CO2 + H2O?
• What is the balanced equation for the combustion of ethanol?
• The equation for the combustion of glucose is: C6H12O6(s) + 6O2(g) --> 6CO2(g) + 6H2O(g). How many grams of H2O will be produced when 8.064g of glucose is burned?
• The equation for the combustion of glucose is: C6H12O6(s) + 6O2(g) -->6CO2(g) + 6H2O(g). How many grams of H2O will be produced when 8.064g of glucose is burned?
• What is the combustion reaction of sucrose?
• Is combustion exothermic or endothermic, and why?
• What is the balanced chemical equation for the combustion of hydrogen and oxygen to make water?
• What is the chemical equation for the combustion of butane?
• What is the balanced equation for the combustion of glucose?
• What is the balanced equation for the complete combustion of pentane (C5H12)?
• What is the balanced equation for the combustion of benzene (C6H6)?
• What is the complete combustion of propanol (C3H7OH) with oxygen?
• What is the difference between a complete and incomplete combustion reaction?
• How does yeast cause bread to rise?
• Question #60418
• In the gravimetric analysis of magnesium, when combusted to magnesium oxide, why should care be taken to collect all of the magnesium oxide is retained by the crucible?
• What are the products of #K_2S(aq) + Pb(NO_3)_2(aq)#?
• What are the products of #Mg(s)+Zn(NO_3)_2 (aq) ->#?
• What are the products of #KOH(s) + CO_2(g)#?
• Question #ea17c
• Question #bb851
• Draw the expected final product when 2-bormo-4,4,5-trimethylheptane is subjected to the following sequence of the reagents: 1) Mg/Et2O 2) CO2 3) H3O+ ??? Please , thank you
• What would be the product when 2,3-dimethylhexanoic acid is treated with SOCl2/pridine, followed LiAl [OC(CH3)3]3H ?
• What would be the product from the reaction of octanal with PhCH2NH2 in the presence of acid catalyst????
• The breakdown of large molecules by the enzymatic addition of water is an example of what kind of reaction?
• Draw the expected product when 2,3-dimethylhexanoic acid is treated with SOCl2/pridine, followed LiAl [OC(CH3)3]3H. ???
• When 2,3-dimethylhexanoic acid is treated with SOCl2/pyridine, followed by LiAl [OC(CH3)3]3H, what would be the product???? Thank you
• Question #cc857
• What are the products of #K_3PO_4 + AlCl_3#?
• What are the products of #HOH + TiO_2 ->#?
• Where does a chemical bond form when a dipeptide is synthesized?
• In a chemical reaction, what is the mass of the products?
• What happens during a chemical reaction?
• What are the five signs of a chemical reaction?
• In a chemical reaction, what is the mass of the product ?
• What happens to atoms during chemical reactions?
• Is burning paper a physical or chemical reaction?
• What are the different types of energy released from a chemical reaction?
• Are bubbles a result of a chemical reaction?
• What is conserved in a chemical reaction?
• Is melting ice a chemical reaction?
• What is the chemical reaction of iron rusting?
• What are some examples of chemical reactions in everyday life?
• What effect does concentration have on the rate of a chemical reaction?
• What do you call chemical reactions which produce energy as heat?
• What are indications that a chemical reaction has occurred?
• What conditions will increase the rate of a chemical reaction?
• How do you know when there has been a chemical reaction?
• Is heat always released during a chemical reaction?
• Why is melting ice not a chemical reaction?
• What happens to atoms during a chemical reaction?
• Why must a chemical reaction be balanced?
• What happens to the reactants when a chemical reaction takes place?
• Are enzymes consumed during a chemical reaction?
• Where does energy come from in a chemical reaction?
• What kind of chemical reaction is fire?
• When does a chemical reaction reach equilibrium?
• Why do disaccharides and polysaccharides give positive Molisch Test?
• Question #7bf72
• Could silicon dioxide be used as the starting material for #Si(OEt)_4#?
• Question #f5a32
• How would I form #"Na"_4"SiO"_4# from silicon dioxide? How about forming #"Na"_4"ZrO"_4# from zirconia?
• What would we see in the reaction between copper carbonate and concentrated hydrochloric acid?
• Question #e3eb3
• Is the term #"substrate"# different from #"reactant"#?
• Question #66a11
• Is an impurity found in an aspirin tablet likely to be a problem?
• Question #0c4ef
• What are the ways in which the rate of a chemical reaction can be changed?
• Question #d5ff0
• Question #21c0a
• Question #c8280
• A highly pure dilute solution of sodium in liquid ammonia … A) has a blue colour; B) exhibits electrical conductivity; C) produces sodium amide; D) produces hydrogen gas, Which of the above answers is/are correct?
• Question #70f88
• How do you write an equation to represent "Ammonia reacts with hydrochloric acid to form ammonium chloride"?
• What is the dissolution reaction for #KNO_3#. How many moles of ions are formed from it?
• How do you write a equation for "Aluminum + copper (ll) sulfate -> copper + aluminum sulfate"?
• Question #90cea
• What happens in a combustion reaction?
• How do we use redox potentials to predict the reactivity of acids with metals?
• Question #2f75b
• What type of reaction takes place when fluorine reacts with sodium bromide?
• Hydrofluoric acid (HF) reacts with silicon dioxide to produce silicon tetraflouride and water. How do you write the balanced equation for this reaction?
• Diphosphorus pentoxide reacts with water to produce phosphoric acid (#H_3PO_4#). How do you write the balanced equation for this reaction?
• How is #"ferric oxide"# reduced by carbon to give steel?
• In the production of iron what is the essential redox reaction that #Fe_2O_3# undergoes?
• What products result from the addition of aqueous solutions of #Cu(NO_3)_2# and #(NH_4)_2S#?
• What kind of chemical reaction is #AgNO_3 + NaCl -> AgCl + NaNO_3#?
• What type of chemical reaction is #4Fe + 3O_2 -> 2Fe_2O_3#?
• What is the net ionic equation for the reaction between aqueous ammonia and hydrochloric acid?
• When i add KMnO4 into an unsaturated carboxylic acid the color of KMnO4 changes to brown and when i added few drops of H2SO4 into this brown solution the brown color disapears. how this occur kindly help me????
• What happens when tellurium(II) chloride reacts with water?
• When we vomit, what gas do we expel? What is the effect of stomach acid on your mouth?
• What are #H^+# and #H_3O^+# in water in the context of acidity?
• What must methane be combined with to undergo a combustion reaction?
• Manganese reacts with sulfuric acid to form manganese sulfate and hydrogen. What are the products in this reaction?
• The acid formed by hydration of sulfur dioxide is....?
• How does increasing the pressure affect the reaction rate?
• What determines if in a reaction between sodium chloride and sulfuric acid you will get sodium bisulfate or sodium sulfate?
• Magnesium reacts with nitrogen to form magnesium nitride. The chemical formula for this reaction is #Mg+N_2-> MgN_2#. What is the product, or what are the products, of this reaction?
• Will lead (#Pb#) react with #HgSO_4#?
• Question #ed5f9
• Question #ea079
• How would you classify the reaction #I_2(aq)+2S_2O""_3^(2-) (aq) -> 2I^(-) (aq) + S_4O""_6^(2-)(aq)#?
• The product of a combination reaction is #Ba(OH)_2#. If one of the reactants is #H_2O#, what is the other reactant?
• The synthesis portion of photosynthesis is sometimes referred to as fixation; that is, the gas #CO_2# is "fixed" into an organic molecule. Of the four major types of organic molecules, into which is #CO_2# first fixed?
• Solid #NaCl# is produced by the reaction of metallic sodium with chlorine gas. How do you write a equation to show this reaction?
• Question #f22b3
• Question #93c6f
• Which type of chemical reaction is represented by the equation #4Al(s)+3O_2 (g) -> 2Al_2O_3 (s)#?
• Did I predict these reaction products correctly?? Help!
• Question #c76b8
• How does sodium hydride react with water?
• Why is the reaction of ethane with bromine called a substitution reaction?
• How is an alkyl halide extended by ONE carbon?
• How is ethyl alcohol oxidized to acetic acid?
• What gas is given off when metals react with acid?
• Question #862f2
• Question #e0b9c
• Question #56cc5
• The salt sodium sulfate, #Na_2SO_4# can be formed by a reaction between which two compounds?
• Question #49034
• Why do the alkali metals give dihydrogen gas upon treatment with water?
• In the reaction #K_2CrO_4(aq) + PbCl_2(aq)->2KCl(aq) + PbCrO_4(s),# how many grams of #PbCrO_4# will precipitate out from the reaction between 25.0 milliliters of 3.0 M #K_2CrO_4# in an excess of #PbCl_2#?
• In the reaction# Mg (s) + 2HCl (aq) -> H_2 (g) + MgCl_2 (aq)#, how many grams of hydrogen gas will be produced from 125.0 milliliters of a 6.0 M HCI in an excess of Mg?
• A scientist performed a chemical reaction and found 36.2 grams of hydrochloric acid were produced. How many grams of water must have also been produced?
• A green powder is heated in a test tube. A gas is given off, and the powder becomes a black solid. In which classification of matter does the green powder belong?
• How do you write the the reaction of lead(II) nitrate (aq) with sodium iodide (aq) to form lead (II) iodide precipitate and sodium nitrate solution?
• Why is this not possible? 2Cl2 + 4NaOH -> 4NaCl + 2H20 + O2
• Question #e395e
• Would magnesium sulfate react with hydrogen peroxide?
• Question #50a5d
• What is the chemical equation for zinc + hydrochloric acid?
• Question #6549c
• How do we represent the saponification of ethyl acetate by sodium hydroxide and sodium hydroxide?
• Question #d0a84
• Question #6778f
• Question #67d3c
• Glucose is broken down during cellular respiration to produce carbon dioxide and?
• What is #Zn + Pb(C_2H_3O_2)_3#?
• Why does (or "do"?) Barium Oxide + Sulfuric Acid yield Ozone?
• Will ammonium sulfide #("NH"_4)_2"S"# decompose when heated? What will be the products?
• What will be the products for #N_2 + CO_2#?
• Why and how do we get #"NH"_4"NO"_3# when reacting very dilute #"HNO"_3# with #"Zn"#?
• Question #a32d3
• Why do CaCO3 + CO2 + H2O form Ca(HCO3)2?
• Question #62993
• How does this reaction occur? #2KO_2 + 2H_2O -> 2KOH + H_2O_2 + O_2­#
• When concentrated aqueous solutions of #Ba(OH)_2# and #Li_2SO_4# are mixed, a precipitate forms. How do you write balanced molecular, total ionic, and net ionic equations for this chemical reaction?
• Question #23db6
• ¿Cuál tipo de reacción química es más simple? ¿Cuáles son los cuatro tipos principales de reacciones en química general?
• Why do ethers resist oxidation?
• ¿Por qué y cómo la ley de conservación de masa se aplica al universo? ¿Cómo se aplica a las ecuaciones químicas?
• Question #b7120
• Question #4f73e
• Question #fdf3f
• How do you represent the reaction of copper sulfate with barium chloride in aqueous solution?
• How do you write a balanced chemical equation for the removal of lead (II) nitrate using hydrogen sulfide? What is the precipitate formed?
• Question #e42f1
• Question #8f3a7
• How much faster is a reaction whose activation energy is #"52.3 kJ/mol"# compared to one at #"62.3 kJ/mol"#, both at #37^@ "C"#?
• Why doesn't barium nitrate react with sulfuric acid?
• 100 grams of magnesium and 2.50 grams of oxygen react together in synthesis reaction to form magnesium oxide. How do you write this balanced reaction?
• Question #f7240
• The compound copper(II) bromide is a strong electrolyte. What is the reaction when solid copper(II) bromide is put into water?
• Question #ae9c0
• Question #5bde6
• Question #fcc23
• How would I test for the following ions?
• How many milliliters of hydrogen will be produced by the reaction of 23.699 g Zn at 24 degrees C and 846 mm Hg?
• Question #c9588
• What is the net ionic equation for the reaction #"NaOH" + "Cu"("NO"_3)_2 -> "Cu"("OH")_2 + "NaNO"_3#?
• How would you balance a reaction with a polyatomic ion only on one side?
• How do you write chemical equations for combustion reactions?
• What are the products of #Ni(s) + Cu(NO_3)_2(aq)#?
• Would a reaction occur if solid tin was placed in a solution of copper (II) nitrate?
• Write the chemical equation and net ionic equation?
• Question #9720b
• Powdered iron is magnetic, but powdered sulfur is not. What occurs when they form a mixture in a beaker at room temperature?
• Given a reaction that was exothermic as written, what enthalpy change would apply to the REVERSE reaction?
• What is the product of a reaction that takes place when sodium oxide combines with water?
• What would be observed in the addition of barium nitrate to magnesium sulfate? What about for barium nitrate and postassium iodide?
• Forming N-methyl-2-aminobutane from 2-aminobutane?
• Question #cd77d
• What are the products of #CaCl_2 + Na_2CO_3#?
• Question #e0777
• Question #f92f2
• What are 4 things that will alter the rate of a chemical reaction?
• I measured #"5.00 g"# copper sulfate solid and #"6.530 g"# zinc. If for this reaction #q_(rxn) = "979.72 cal"# of energy was involved, why is my percent error of the standard enthalpy of reaction for the reaction of zinc with copper sulfate so big???
• How do we speed up the disproportionation reaction of #"thiosulfate ion"# to give elemental sulfur, and sulfate anion?
• Why does thiosulfate oxidize to sulfate in an acidic medium?
• What is the product of the chemical equation #C_3H_8(g) + 5O_2(g)#?
• How do we define the thermodynamic equilibrium for a chemical reaction?
• What type of reaction is #2C_4H_20(g) + 13O_2(g) -> 8CO_2(g) + 10H_2O(g)#?
• Can we speak of molecular formulae in describing an ionic salt?
• What is ammonium hydroxide?
• Is water a chemical?
• What is a chemical change?
• How does a chemical reaction work?
• What is Delta Hrxn for the following chemical reaction? #CO_2(g)+ 2KOH(s) -> H_2O(g) + K_2CO_3(s)#?
• What kind of chemical reaction is #2Cu + O2 → 2CuO + 315 kJ#?
• What is the chemical reaction that occurs in a breathalyzer?
• What is a chemical reaction mechanism?
• What is the product when magnesium reacts with nitrogen?
• How would we differentiate calcium chloride, and copper sulfate?
• Question #3d845
• Question #b8a9f
• Question #0eea0
• Can you represent the stoichiometric equation for the reaction between ammonium sulfate, and potassium hydroxide?
• How do we represent that reaction between ammonium sulfate, and sodium hydroxide?
• Question #77a01
• Question #9701f
• What is the reaction for the dissolution of magnesium nitrate in water?
• Write the net ionic equation for each of the following reactions?
• ¿¿¿Qué típos de soluciones el vídeo describe???
• How will the mass of a rusted iron nail compare with the mass of the same nail before it rusted?
• Mg produces hydrogen with dilute #HNO_3# but Zn does not do so. What is the explanation of this phenomenon?
• How does iodine oxidize sulfide ion to sulfate ion?
• Predict the products of the following reactions. If no reaction occurs, write “NR” for No Reaction. Do not worry about balancing the equation?
• Question #f5d5c
• Question #12933
• Question #d6f12
• What characterizes a chemical reaction?
• Question #e8e9c
• What is the chemical equation for HCl dissolving into water and ionizing?
• What is the product of this chemical equation?
• Question #f9544
• What is the product of ammonia and acid?
• Question #97adb
• What is the disproportionation reaction of #MgCl#?
• What does disproportionation reaction mean?
• What is an example of a disproportionation reaction?
• What is the disproportionation reaction of #H_3PO_3#?
• What is a disproportionation reaction?
• Why is chlorine and water a disproportionation reaction?
• Sodium metal reacts with hydrochloric acid to produce salt and hydrogen gas. What are the reactants in this chemical reaction?
• Glucose is made of 6 carbons. Where did those carbons originally come from?
• Question #230c9
• Question #82a89
• What is the chemical equation for titration of #HCl + NH_3#?
• What is the balanced equation that represents the combustion of glycerol by potassium permanganate?
• What are the word and symbol equations for the reaction of sulfuric acid and barium chloride in water?
• Question #8c6aa
• The rate determining step is what part of a reaction?
• What is the rate limiting step in a chemical reaction?
• What is a rate determining step?
• How can you tell the rate determining step?
• How do you know the rate determining step?
• How does the rate determining step affect the observed rate law?
• How do you find the rate determining step from a graph?
• What is a rate determining step example?
• Why is the rate determining step slow?
• How does the reaction between copper ion and hydroxide ion proceed?
• If 32.5 grams of #CaO# are dissolved in 212 grams of water, what is the concentration of the solution in percent by mass?
• Question #0dc61
• What would sodium and potassium metals give upon treatment with water?
• What are the products of the following reaction? #2Al(s) + 6H^+ (aq) ->#
• What are the products of the following reaction? #SO_2 (g) + H_2O ->#
• What are the products of the following reaction? #SO_2 (g) + H_2O (l) ->#
• Question #e3520
• Question #21e81
• How is potassium oxidized by water? What is the reduction product?
• Question #fef12
• What type of reaction occurs when one compound reacts and is broken down into different elements or simpler compounds?
• Sodium chloride reacts with copper sulfate to produce sodium sulfate and copper chloride. #2NaCI (aq) + CuSO_4 (aq) -> Na_2SO_4 (aq) + CuCl_2 (s)#. What type of reaction is this?
• What products will most likely be observed in a combustion reaction?
• What type of chemical reaction occurs in #Ca + Cl_2 -> CaCl_2#?
• What type of chemical reaction do two or more substances combine to form one substance?
• A chemical reaction has two elements as reactants. What type of reaction might occur?
• What is a chemical reaction in which heat is released as a product called?
• Do you think that washing soda, #Na_2CO_3#, could be used for the same purpose as baking soda, #NaHCO_3#? Would #Na_2CO_3# react with #HCl#? How do you write the chemical equation for the reaction of #NaHCO_3# with #HCl#?
• How many oxygen atoms are in the products of the following reaction? #C_6H_12O_6 + 6H_2O + 6O_2 -> 6CO_2 + 12 H_2O#
• In the chemical equation for photosynthesis, carbon dioxide and water are converted to glucose and oxygen. #6CO_2 + 6H_2O -> C_6H_12O_6 + 6O_2#. What component could be added to complete this chemical equation?
• #HCl# is called hydrochloric. How would you write an acid ionization reaction equation for this acid?
• Considering the following reactions, what type of reaction is represented by these two examples?
• In the combustion of hydrogen gas, hydrogen reacts with oxygen from the air to form water vapor. Hydrogen + Oxygen #-># water. If you burn 58.1 g of hydrogen and produce 519 g of water how much oxygen reacted?
• How many millliters of 275 M #H_2SO_4(aq)# are needed to react completely with 58.5 g of #BaO_2(s)#?
• How many millliters of 2.75 M #H_2SO_4(aq)# are needed to react completely with 47.5 g of #BaO_2(s)#?
• Question #cc649
• What are the actions of a catalyst?
• When baking soda and vinegar combine to form sodium acetate and carbon dioxide, energy is absorbed from the surroundings and the solution gets colder What type of reaction is this?
• How many #O_2# molecules are needed to react with 7.87 g of S?
• What does the reactivity of an atom arise from?
• The yeast in bread dough feeds on sugar to produce carbon dioxide. Why does the dough rise faster in a warmer area?
• A student records the mass of a piece of iron. The iron is then left outside until it rusts. What type of reaction occurs, and how does the mass of the object after rusting compare with its original mass?
• Fluorine gas is placed in contact with calcium metal at high temperatures to produce calcium fluoride powder What is the chemical equation for this reaction?
• What is the starting substance in a chemical reaction?
• How would you draw the ester that is formed from the reaction of benzoic acid and ethanol?
• How would you draw the resulting carboxylate anion that forms when propanoic acid reacts with a strong base?
• What type of chemical reaction does the balanced equation below represent?
• What products form when propene combusts completely?
• What is produced when potassium reacts with water? #2K(s) + 2H_2O (l) ->#?
• What is a reaction in which all the reactants form only products called?
• What is a numerical value of the ratio of products to reactants, only at a specified temperature is called?
• What kind of reaction occurs when potassium is placed in water?
• When methane (#CH_4#) burns in the presence of insufficient oxygen (#O_2#), do the products of the reaction include carbon monoxide(#CO#)?
• What is an example of a single displacement reaction?
• In a combustion reaction, is carbon used to make reactants burn?
• How many grams of water can be produced the combination of 8 grams of oxygen and 8 grams of hydrogen?
• What term best describes the type of reaction that happens when a molecule or compound reacts with another molecule or compound, producing two new molecules or compounds?
• What type of reaction takes two elements or molecules and combines them together to produce a single molecule?
• This reaction is an example of what type of reaction? #NH_3(g) + H_2O(l) -> NH_4OH(aq)#
• #H_2SO_3 (aq) -> H_2O (l) + SO_2 (g)# is what type of reaction?
• What type of reaction always takes one large molecule and breaks it down into its smaller pieces?
• What is the balanced unbalanced chemical equation for aluminum reacting with hydrochloric acid to yield aluminum chloride and hydrogen?
• What is the chemical equation for ethane reacting with oxygen to yield carbon dioxide and liquid water?
• What is the net ionic equation for the reaction between #HF# (a weak acid) and #NaOH#?
• Question #d7b6d
• What is the energy required to begin a reaction called?
• For this reaction #H_2SO_4(aq) + Ca(OH)_2(aq) -> CaSO_4(aq) + 2H_2O(l)#, which substance is the base?
• Why is oxygen excluded from the catalytic cracking of hydrocarbons?
• Question #65a8b
• How is the speed of a chemical reaction related to the spontaneity of the reaction?
• What occurs when salts are added to a soapy bubble bath?
• What is the combination reaction for #K(s) +Cl_2(g)#?
• What effect does a catalyst have on activation energy?
• How does barium chloride react with sulfuric acid?
• Can you represent the combustion of methanol?
• Why does soap scum form in hard water that contains #Mg^(2+)# ions when a sodium stearate soap is used?
• In the reaction #4NH_3+6NO->5N_2+6H_2O#, how many grams of ammonia will react with 27.8 grams of nitric oxide?
• How many moles of tin metal will be produced when 0.74 moles of tin IV oxide is heated in the reaction #SnO_2 + 2H_2 -> Sn + 2H_2O#?
• Question #f94f6
• What would occur when a solution of sodium carbonate was added to a solution of calcium nitrate?
• What are the grams of sodium chloride produced when 10.0 g of sodium react with 10.0 g of chlorine gas in the equation #2Na+Cl_2 -> 2NaCl#?
• Question #a2593
• Is yeast causing bread to rise a chemical reaction?
• Question #b1cb9
• How do you classify this reaction? #8HNO_3 (aq) + 3 Cu (s) + O_2 (g) -> 3Cu(NO_3)_2 (aq) + 4H_2O + 2NO_2 (g)#
• What is a model you could use to demonstrate the process of diffusion?
• #C_6H_12O_6 + H_2O + en ergy -> CO_2 + O_2#. How can you identify what is wrong with this equation?
• Question #47c74
• Are new atoms produced in chemical reactions?
• When hydrogen is burned, it reacts with oxygen and to produce what?
• What process produces sugars?
• What does pt mean in a chemical reaction?
• What type of reaction is elctrolysis of hydrogen and oxygen?
• The electrolysis of water into hydrogen and oxygen is an example of what reaction?
• What is the name for the orange brown vapor of a bromine reaction?
• What would you observe when chlorine and potassium bromide are mixed?
• What does chlorine + potassium yield?
• What products are obtained when amyl acetate is hydrolyzed under acidic condtions?
• How would you give a brief account with equations of the method you would use to prepare a sample of lead(II) sulfate?
• Home barbeques are fueled with propane gas (C_3H_8). What mass of carbon dioxide (in kg) forms upon the complete combustion of 18.9 propane (approximate contents of one 5-gallon tank)?
• Oxygen reacts with fluorine to form only #OF_2#, but sulphur which is in the same Group 16 as oxygen, reacts with fluorine to form #SF_2#, #SF_4# and #SF_6#. Why is this?
• What happens when carbonate minerals come into contact with hydrochloric acid?
• We have a propane molecule that lost a H and gains the OH- functional group. What have we created? How is the charge different for this molecule?
• What is electroplating?
• How many grams of carbon monoxide can you produce from 3 grams of carbon and an excess of oxygen?
• In condensation reactions, the atoms th make up a water from what?
• In the combustion of 5.00 grams of an alcohol the chemist produced 11.89 grams of #"CO"_2# and 6.09 grams of #"H"_2"O"#. What is the identity of the alcohol?
• In the reaction #B + K leftrightarrow L + H#, if an additional B is added, what will be the result?
• What is the substance that enters into a chemical reaction called?
• What is the reason for running cold water through condenser from lower side to upper side in distillation process?
• Question #6db38
• Question #39c6a
• Question #bf031
• What mass of #"ammonium sulfate"# can be prepared from a #30*g# mass of #"ammonia"#, and a #196*g# mass of #"sulfuric acid"#?
• How does ammonia react with (i) silver bromide, and (ii) hydrogen iodide?
• The cooling effect of sweating occurs because of the breaking of which chemical bonds?
• What is evaporation? Condensation?
• Hydrogen and oxygen react chemically to form water. How much water would form if 4.8 grams of hydrogen reacted with 38.4 grams of oxygen?
• What does the law of conservation of matter state?
• What are the substances that enter a reaction?
• What are the substances that are formed after a reaction has taken place?
• Why it is important to add sodium chloride to water when making homemade ice cream?
• What is fractional crystallization?
• How is hydrogen formed from zinc and methane under basic conditions?
• What would happen if you put a hit splint in a tube of carbon dioxide?
• #BeC_2O_4 * 3H_2O -> BeC_2O_4 (s) + 3H_2O(g)#. If 3.21 g of #BeC_2O_4 * 3H_2O# is heated to #220^oC#, how do you calculate the mass of #BeC_2O_4(s)# formed and the volume of the #H_2O(g) released, measured at 220 C and 735 mm Hg?
• How do you write a stepwise mechanism that shows how a small amount of #CH_3CH_3# could form during the bromination of #CH_4?
• Which by product of fermentation has been utilized in the production of bread?
• Write the overall equation for the reaction described by the mechanism above?
• If you started with 7.461 g of magnesium metal, how much oxygen would be consumed during combustion?
• What does Barium chloride + Aluminum sulfate produce?
• What does Ammonium phosphate + Barium acetate yield?
• Question #0cc56
• How much NaCl can be dissolved in 750 g of water at 25°C?
• How could you separate zinc chloride from #SiO_2#?
• What substances are formed as a result of this reaction?
• What molecule is catalase breaking down in this reaction?
• A biochemist is attempting to replicate a chemical reaction that commonly takes place in cells. During the chemical reaction, starch is broken down into glucose. What will most likely happen if the biochemist adds an enzyme to the reactants?
• The reaction of methane and water is one way to prepare hydrogen: #CH_4(g) + H_2O (g) -> CO (g) + 3H_2(g)# [Molar masses 16.04 18.02 28.01 2.02]. If you begin with 995 g of #CH_4# and 2510 g of water, what is the maximum possible yield of #H_2#?
• How do you write the overall (molecular) equation and net ionic equation for the reaction (hydroiodic acid) potassium hydroxide?
• 7.0 moles of sulfur atoms and 10 moles of oxygen molecules are combined to form the maximum amount of sulfur trioxide, how many moles of which reactant remain unused at the end of the reaction?
• How do copper and magnesium metals react with nitric acid?
• What is the tendency of an element to react closely related to?
• What mass of #C CL_4# is formed by the reaction of 108.74 g ofmethane with 91.72 g of chlorine?
• What happens when solid dinitrogen pentoxide is added to water?
• How do you identify the reactants and products in the following reaction: potassium + water #-># potassium hydroxide + hydrogen?
• What are the elements or compounds that enter into a chemical reaction?
• What is the substance formed in a chemical reaction?
• What is the changing of substances to other substances by the breaking of bonds in reactants and the formation of bonds in products?
• Elemental sulfur occurs as octatomie molecules, #S_8#. What mass of fluorine gas is needed to react completely with 28.6 g of sulfur to form sulfar hexafluoride?
• What occurs when sodium is added to liquid ammonia?
• What processes can be considered the chemical reverse of each other?
• Hydrogen gas reacts rapidly with oxygen gas in the presence of a platinum catalyst. What equation would represent this reaction?
• How does condensation occur?
• A chemical reaction is a process that changes some chemical substances into others. What is involved in the process of forming these new chemical substances?
• Why are different colors observed when compounds are subjected to flame?
• How can you use the formation of water from hydrogen and oxygen to explain the following terms: chemical reaction reactant, and product?
• How do you write out the formula, complete ionic, and net ionic reaction for a reaction occurring when lead(IV) nitrate reacts with barium chromate?
• If 5.563 grams of #CH_4# reacted with 25.00 grams of oxygen, how much #CO_2# , in grams, can be produced? #CH_4(g) + 2O2(g) -> CO_2(g) + 2H_2O(g)#?
• What ions result when water is split?
• What is happening when the reactants begin to react?
• How would you identify the reactants and products in the chemical reaction below?
• Question #a7896
• Why is tamarind juice used to clean verdigris from copper and brass?
• What type of equation is #2NaBr+Ca(OH)_2 -> CaBr_2 + 2NaOH#?
• How does sulfuric acid react with sodium carbonate?
• Question #bf3a3
• What would be the best method for reducing acid precipitation?
• What properties describe how substance interact with other?
• Hydrogen peroxide (#H_2O_2#) breaks down into water (#H_2O#) and oxygen (#O_2#). Explain why this is a chemical reaction. What are the reactants and the products in the reaction?
• How many milliliters of 4.00 M #HCl(aq)# are required to react with 8.75 g of #Zn(s)#?
• Conc.HNO3 can be transported in aluminium containers.Explain why?
• What occurs in a chemical reaction?
• What takes place in a chemical reaction?
• What happens in a chemical reaction?
• Which is the correct reduction half reaction for the following equation? #Ca + CuO = Cu + CaO#?
• In a chemical reaction, how does the mass of the reactants compare with the mass of the products?
• How do you write a balanced equation for the combustion (reaction with oxygen gas) of glucose, #C_6H_12O_6#, to give carbon dioxide and water?
• How do you write an equation for the reaction between sodium chloride, sulfur dioxide gas, steam, and oxygen to give sodium sulfate and hydrogen chloride gas?
• Question #f4655
• How do we represent the reaction between aluminum metal and protium ion, #H^+# or #H_3O^+#?
• What is the reaction between potassium hydroxide and #1,2−C_6H_4(OC(=O)CH_3)(CO_2H)#?
• Can anyone explain why it is so hard to dry inorganic salts?
• What would occur in the reaction between #"potassium permanganate"#, #KMnO_4# and #"sodium sulfite"#, #Na_2SO_3#?
• If 82.9 mL of lead(II) nitrate solution reacts completely with excess sodium iodide solution to yield 0.179 g of precipitate, what is the molarity of lead(II) ion in the original solution?
• What mass of oxygen is needed to react with 4.5g of ethane #C_2H_8#?
• What mass of magnesium oxide is formed when 6 g of magnesium reacts with oxygen?
• What mass of iodine is produced when 7.1 g of chlorine reacts with potassium iodide?
• What mass of carbon dioxide is made when 22 g of propane is burned in oxygen?
• How many g of #B_2H_6# will react with 3.00 mol of #O_2#?
• What is rainwater or water that has been chemically treated known?
• What does this reaction yield? #Na_2CO_3(aq) + CoCl_2(aq) ->#
• What is the location on an enzyme that chemical reactions happen on?
• Question #36044
• Question #fc0a2
• What is the cause of the color change observed when #HCl# is added to the complex ion #[Cu(NH_3)_4]^(2+)#?
• What kind of chemical change do you think occurs when a banana peel turns brown in the open air?
• Does a gas form when vinegar and baking soda are mixed?
• What does the word reactant mean?
• How would you exemplify chemical mediators?
• How would you give a balanced equation for the following reaction: ammonia + sulphuric acid ---> ammonium sulphate?
• A student combines solutions of silver nitrate, #AgNO_3#, and sodium chromate, #Na_2CrO_4#, and observes that a reddish-brown solid forms. Based on this observation, what type of a reaction can the student infer has occurred?
• How do you explain the electrochemical theory of corrosion?
• What toxic, odorless gas is produced by a running engine?
• What are the results of collisions between faster-moving particles and slower-moving particles?
• Does the following reaction occur? Explain your answer.
• What are the products of Copper sulphate + sodium hydroxide?
• What are the products of Potassium iodide + lead nitrate?
• What are the products of Sea Water + silver nitrate?
• What is the product of Potassium iodide + silver nitrate?
• Why is magnesium oxide the likely product of combustion of magnesium in air rather than magnesium nitride?
• What type of chemical reaction is illustrated by #H_2SO_4(aq) ->SO_3(g) + H_2O(l)#?
• What are the similarities and differences in the products of hydrolysis of sucrose, maltose and lactose ?
• What precipitate forms when silver nitrate and potassium chromate solutions are mixed?
• Aqueous solutions of silver nitrate (#"AgNO"_3#) and iron chloride (#"FeCl"_3#) are mixed together. Which ion combines with the chloride ion to form a precipitate?
• What type of reactions require energy in order to take place?
• The produces of what type of reaction have lower energy than the reactants?
• Question #b39e6
• Question #f2d08
• Question #01012
• What is the energy required for chemical reaction called?
• What happens to red litmus paper when it touches a household cleaner that has ammonia in it, and why?
• How do we represent the reduction of #MnO_2# by chloride anion to give #Mn^(2+)# and chlorine gas?
• Question #64932
• Question #07037
• What are two ways in which carbon dioxide is added to the atmosphere?
• What kind of chemical reaction is shown? #AgNO_3 + NaCl -> AgCl + NaNO_3#
• How do you know or identify chemical reaction occurred?
• When sulfer and nitrogen oxides mix with water in the air, do they form smog?
• What are the substances formed by a chemical reaction?
• Some liquid products are sold in aerosol cans. Gas is stored in a can under pressure and is used to propel the liquid out of the can. Why shouldn't an aerosol ever be thrown into a fireplace or incinerator?
• What are the substances present at the beginning of a chemical reaction?
• What is a solid product that may form when chemicals in two liquids react?
• What is the process that changes the way in which atoms are arranged by causing bonds betwee to break and new bonds to form between different atoms?
• What law that states the mass of the reactants is always equal to the mass of the products?
• What is a substance that increases the rate of a chemical reaction but is not itself consumed 1n the reaction?
• Question #9ade8
• Some fireworks have crimson red and yellow colors. Which elements might give them these colors?
• How is the reaction of strontium hydroxide with nitric acid represented?
• Question #ba5a1
• Question #130a3
• Why is there a color change when ethene reacts with bromine?
• What causes milk to sour?
• What mass of precipitate can be produced when 120.0 mL of .130 M barium chloride and 160.0 mL of 0.140 M iron(Ill) sulfate are mixed?
• How many moles of #N_2# reacted if 0.75 mol of #NH_3# is produced?
• Propane, #C_3H_8#, is frequently used in camping stoves. When propane undergoes combustion, what are the products formed?
• Multiple choice: Soap in Hard Water. What is the correct solution and why?
• When burning 180 g glucose in the presence of the 192 g of oxygen, water and carbon dioxide are produced. If 108 g of water is produced, how much carbon dioxide is produced?
• What is a combination reaction?
• Water can be formed from the stoichiometric reaction of hydrogen with oxygen: #2H_2(g) + O_2(g) + 2H_2O(g)#. A complete reaction of 5.0 g of #O_2# with excess hydrogen produces how many grams of #H_2O#?
• What are the the product(s) of the complete combustion of any hydrocarbon?
• What is the process by which elements combine with oxygen?
• The following reaction is an example what type of reaction? #2C_2H_6(g) + 7O_2(g) + 4CO_2(g) + 6H_2O(g)#
• How do you write an equation for the reaction between zinc metal and hydrochloric acid (aqueous) producing zinc chloride (aqueous) and hydrogen gas?
• What is the definitions of a condensation reaction?
• How do you write the equation for this reaction: Aluminum bromide and chlorine gas react to form aluminum chloride and bromine gas?
• How do we represent the complete, and net ionic equations for the reaction between hydrogen iodide, and potassium hydroxide?
• What is a solid formed from liquid reactants during a chemical reaction?
• Iron metal reacts with oxygen to produce iron (lll) oxide. If you have 12.0 moles of iron for a complete reaction, what do you need?
• Question #55e8d
• Some molecules of #C_11H_24# crack to produce ethene and propene. How would you write a balanced equation to show a cracking reaction which makes ethene and propene?
• Given the following, how many g of calcium chloride will be produced when 28.0 g of calcium carbonate are combined with 12.0 g of hydrochloric acid? Which reactant is in excess and how many g of this reactant will remain after the reaction is complete?
• You are given 4.5 moles of #O_2# to react with #1.60 x10^2# g #C_2H_4#. Upon completion of the reaction, will there be any remaining #C_2H_4#?
• How would you define reduction in terms of the loss and gain of oxygen?
• In a action, if the bonds in the reactants are stronger than the bonds in the product, what type of reaction is it?
• #P + Cl_2 -> PCl_3# is what type of reaction?
• What is the oxidation product when ethanol reacts with potassium permanganate?
• What is a highly reactive molecule containing three oxygen atoms, is found in the stratosphere, and protects the earth by absorbing ultraviolet rays?
• How many hydrogen atoms would need to combine with one atom of nitrogen so that all of them would be stable?
• What substance is produced during the reaction of an acid with a metal hydroxides?
• What is the function of manganese dioxide?
• The reaction between #H_2# and #O_2# produces 13.1 g of water. How many grams of #O_2# reacted? #2H_2(g) + O_2(g) -> 2H_2O(g)#?
• Aqueous solutions of ammonium chloride and lead nitrate produce leadon chloride precipitate and aqueous ammonium nitrate. What type of reaction is this? How do you balance the equation?
• What is the chemical equation for Iron(III)Chloride + Sodium Hydroxide?
• The burning of fuels, such as coal, natural gas, or oil, involves what type of reaction?
• What is the equation for the reaction of Barium Nitrate Hydrochloric Acid?
• What is the subatomic particle responsible for chemical reactivity of all elements?
• What is the equation for this reaction: Barium Nitrate + Sodium Carbonate?
• Why does copper sulfate pentahydrate change colour upon heating?
• How do we represent the combustion of #C_5H_8#? Is this a redox reaction?
• How does elemental bromine oxidize the iodide ion?
• What type of reaction is #H_2+Cl -> HCl#?
• Question #4bf1f
• How do you show the reaction of sulfurous acid with lithium hydroxide to form water and lithium sulfite?
• What is involved in a chemical reaction?
• Lysis means to split or separate. What prefix would you add to lysis to mean separate or split using water?
• How do you determine if a reaction is a fusion reaction?
• How would you expect phosphorus pentachloride to react with ethanol? How does this reaction resemble the reaction of phosphorus pentachloride with ethanoic acid?
• Question #98617
• Given this reaction: #CH_4 + 2O_2 -> CO_2 + H_2O#, 16 g of #CH_4# react with 64 g of #O_2#, producing 44 g of #CO_2#. How many grams of water are produced?
• What is the mass of #PBr_3# that can be produced from this reaction?
• When 30.0 moles of zinc reacts with excess #H_3PO_4#, how many grams of hydrogen are produced?
• What is a slow destruction of a metal through its reaction with oxygen in the air?
• How would you write an unbalanced equation for solid magnesium metal reacts with liquid water to form solid magnesium hydroxide and hydrogen gas?
• How many grams of #KCIO_3# must be heated to produce 6.8 moles of oxygen?
• How do you write a total ionic equation and a net ionic equation for this reaction? #HCl(aq) + NaOH (aq) -> NaCl (aq) + H_2O(l)#?
• What is one commercial use of alcoholic fermentation?
• Solid arsenic reacts with Oxygen gas to synthesize solid arsenic trioxide. How many moles of arsenic trioxide will be produced from 3.4 moles of oxygen gas?
• What is the maximum amount of #IF_7# that can be obtained from 25.0 g fluorine in the equation #I_2 + F_2 -> IF_7#?
• Acid is added to a beaker containing crushed marble. What effect does stirring this mixture have on the system?
• How many moles of #CO_2# form when 58.0 g of butane, #C_4H_10#, burn in oxygen?
• What happens to oxygen gas in the air during burning?
• How many grams of nitrogen dioxide must react with water to produce #5.00*10^22# molecules of nitrogen monoxide?
• If the masses of all but one of the substances that take part in a chemical reaction are known, why is it possible to determine the unknown mass by subtraction?
• How would you write a balanced chemical equation for the neutralization of sulfuric acid with potassium hydroxide? What is the name and chemical formula of the salt formed in this reaction?
• How would you complete this reaction? #NaOH + Al -> H_2 + ?#
• What is a reaction with a negative #DeltaG# and occurs spontaneously?
• What is the basic formula of a dehydration reaction?
• What is the net ionic equation for the reaction of aqueous lead(II) nitrate with aqueous sodium bromide?
• What happens when magnesium turnings are added to a solution of iron (Ill) chloride?
• What happens when solid iron (l) and oxygen gas combine?
• What happens when solid aluminum and chlorine gas combine?
• Why are halogens reactive?
• Question #6a445
• How are the following reaction described?
• Using the equation, #Fe_2O_3 + 2Al -> 2Fe + Al_2O_3#, how many grams of #Al# are needed to completely react with 135 grams of #Fe_2O_3#?
• When 1.57 mol #O_2# reacts with #H_2# to form #H_2O#, how many moles of #H_2# are consumed in the process?
• Chlorine reacts with water according to the equation: #Cl_2 + H_2O -> HCIO + H^+ + Cl^-#. Given this, how do you write an equation to show how iodine reacts with water?
• How do you write an equation for the process "Sodium thiosulfate dissolves in water"?
• What does it mean to say that a chemical reaction is reversible?
• What are oxidation numbers?
• What are the reactants in a chemical equation?
• What are chemical reactions that require oxygen called? What are those that do not require oxygen considered?
• What chemical changes cause leaves change color in autumn?
• What happens in the reaction of Fe(II) and O?
• What is always the same between the reactants and products in a chemical reaction?
• An iron nail was immersed in a solution of copper sulfate and when it was removed from the solution, it was coated with a layer of copper metal. Hereafter, a different iron nail was immersed in a solution of zinc nitrate and removed this nail rusted?(con)
• What is reactant in every combustion reaction?
• What type of reactions break substances apart into at least 2 products?
• How can we separate the hydrogen from the oxygen #H_2O#?
• What are metathesis reactions?
• How is iodized salt made?
• What type of reaction is used to generate an electrical current in a battery?
• What depends upon the amount of sample present whereas temperature does not?
• What are the products of this reaction? #S_(s) + 2H_2SO_(4(aq)) ->#
• How many grams of barium sulfate solid are produced from reacting 18.48 grams of barium chloride with an excess amount of sodium sulfate?
• How do you write the balanced chemical equation for the acid hydrolysis of methyl butanoate?
• Why do nonmetals tend to form negative ions during a chemical reaction?
• What type of reaction is #FeS + HCl -> FeCl_2 + H_2S#?
• When methane, CH4 reacts with oxygen, is one product nitrogen gas?
• Magnesium reacts with oxygen gas to produce magnesium oxide, light, and heat. What type of reaction is this?
• What type of reaction is this: Iron (II) oxide (s) + oxygen (g) #-># Iron (III) oxide (s)?
• If sulfur dioxide and oxygen can be made into sulfur trioxide, what is the reverse reaction?
• When propane, #C_3H_8#, is burned, carbon dioxide and water vapor are produced according to the following reaction: #C_3H_8 + 5O_2 -> 3CO_2 + 4H_2O#. How much propane is burned if 160.0 g of O2 are used and 132 g of CO2 and 72.0 g of H2O are produced?
• Are catalysts ever permanently changed in a reaction?
• What is the biggest concern when mixing sodium or potassium catalyst with methanol?
• How many moles of zinc oxide is produced if 4.44 moles of zinc reacts with excess oxygen?
• What does the reaction of CO2(g) + H2O(l) produce?
• What are the reactants and product in the following reaction: #MgCl_2 + Li_2CO_3 -> MgCO_3 + 2LiCl#?
• How many moles of #FeO# are produced if 8 moles of #SO_2# are produced in #2CuFeS_2 + 5O_2 -> 2Cu + 2FeO + 4SO_2#?
• Question #f13c3
• Taylor mixes liquids together in a beaker. A solid forms at the bottom of the beaker, and the liquid changes from pink to blue. What can you determine about the properties of the products?
• Calcite is created by combining what three elements??
• What is the formula for the result of the reaction of #Ca + Cl ->#?
• When do chemical reactions happen?
• What is the most important chemical reaction of all?
• What occurs when two fluorine atoms react to produce a fluorine molecule?
• How to predict the products of the reaction of CO2(g) + KOH(aq)?
• Glucose + 2X -enzymes-> 2 Pyruvic acid + 4ATP. What substances is indicated by "X" in this equation?
• How do you complete this reaction? #"HCOOH"(aq) + "NaOH"(aq) -> ? +?#
• What controls how fast a chemical reaction occurs?
• How would the reaction of a metal oxide with hydrogen gas occur?
• What is the net ionic equation for the reaction between potassium hydroxide and hydrochloric acid?
• What occurs when fruit is dehydrated? #"A. The mass of the fruit sugars are increased."# #"B. The mass of the fruit sugars are decreased."# #"C. The mass of the fruit is decreased after the water is evaporated."# #"D. None of the above."#
• What is the sum of all the chemical reactions involved in building up and breaking down molecules called?
• How many grams of #TiCl_4# are needed to produce 44.9 g of titanium?
• Chemical reaction is most often occurring with the constant parameter of ______?
• Question #ddea1
• How does #"silver nitrate"# react with #"sodium oxalate"# in aqueous solution?
• What are the products in this reaction: #6H_2O + 6CO_2 -> C_6H_12O_6 + 6O_3#?
• Why does warm air rise during convection?
• If a sample of 0.140 g of #KCN# is treated with an excess of #HCl#, how do you calculate the amount of #HCN# formed, in grams?
• Question #7f6cb
• How many grams of nitrogen are necessary to produce 15.00 grams of ammonia?
• What are the products of this reaction: #Ag + KNO_3 -> # ?
• What is one piece of evidence you would expect to see that indicates that a chemical reaction is taking place in each of the following situations?
• Question #d3b6a
• What are the products of this reaction: Calcium chloride(aq) + Sodium Hydroxide (aq)?
• Question #99100
• Question #1e358
• Are those five different ways of receiving Al2(SO4)3 correct?
• Why can't we react francium with water?
• How does #"calcium carbide"#, #Ca^(2_+)C_2^(2-)# react with water?
• During a chemical change, what are the reactants and what are the products?
• What three things are required for combustion?
• What is a substance that is used up in a chemical reaction called?
• Which atoms will be found in the products of the following reactions?
• What is the process of converting hydrogen into helium in stars called?
• The equation below represents a chemical reaction that occurs in living cells. How many atoms are represented in the reactants of this equation?
• What are the products of this reaction: #FeS + HCl#?
• When magnesium ions form compounds with bromide ions, how many magnesium ion(s) are needed to form a neutral compound?
• What are the products of the reaction of #Ca + HCl ->#?
• What is the name for a reaction that links monomers to form a chain?
• Is a substrate consumed or changed by a reaction?
• What would happen if a positively charged sodium ion and a negative chlorine ion came into contact?
• What are the products of the reaction between #C_4H_10 + O_2 →#?
• What are the products of a reaction between zinc and silver chlorate?
• What are the products when lithium ion and iodide are combined?
• How would you label each formula in the chemical equation below as either a reactant or a product? #Fe + S -> FeS#
• How do we chemically identify a nitro-phenol derivative?
• Your reactants are two compounds composed of ions. What type of reaction do you probably have?
• What are the elements or chemicals that enter into a chemical reaction?
• In the following reaction: #Mg(s) + 2H_2O(l) -> Mg(OH)_2(s) + H_2(g)#. What mass of Mg must you use to make #5.6 x 10^4#g of #Mg(OH)_2#?
• Crystalline sodium nitride is heated until it decomposes. What type of reaction is this?
• How can you use some or all of these substances to obtain ammonia gas, the brown ring compound, carbon dioxide?
• #C_6H_12O_6(s) + 6O_2(g) = 6CO_2(g) + 6H_2O(l)#. What compounds are the reactants? What compounds are the products? What is indicated by the (s), (g) and (l) in the equation?
• When glucose is consumed, it reacts with oxygen in the body to produce carbon dioxide, water, and energy. How many grams of carbon dioxide would be produced if 45 g of #C_6H_12O_6# completely reacted with oxygen?
• What does the formation of a precipitate indicate?
• What is the conversion of pyruvate to carbon dioxide and ethanol called?
• When 5.0 g of tin reacts with hydrochloric acid, the mass of the products, tin chloride and hydrogen, totals 8.1 g. How many grams of hydrochloric acid were used?
• What is the a balanced chemical equation for the combust of liquid methanol (#CH_3OH#)?
• Iron oxide reacts with aluminum to give aluminum oxide and iron. What kind of chemical reaction is this?
• When the chemical lodine comes into contact with a starch, what happens (describe the color change)?
• What are the spectator ions for the reaction that occurs when aqueous solutions of #Na_2CO_3# and HCL are mixed?
• In the reaction #N_2 + 3H_2 -> 2NH_3#, what volume of ammonia is produced when 5.0 L of Nitrogen react?
• A copper (Cu) block at 90°C is placed into a beaker of water (#H_2O#) at 25°C. What is the expected result based on the heat flow between the substances?
• How much aluminum can be retrieved from 55.6 g of aluminum oxide, #Al_2O_3#?
• What are the products of lead (II) acetate + hydrogen sulfide →?
• What are the products when potassium cyanide reacts with hydrobromic acid? What type of reaction is this?
• Question #41939
• What would occur if a solution of strontium nitrate were mixed with sodium sulfate?
• What is the test for the presence of unsaturated bonds?
• What are the complete and the net ionic equations for the reaction between silver nitrate and sodium chloride?
• How do hydrocarbons behave in combustion reactions?
• Question #7acea
• #"Sodium azide"#, #NaN_3#, is used in automobiles to fill air bags: (i) is this an example of chemical change; (ii) is the mass of the products equal to the mass of the reactants; and (iii) could a #83.0*g# sodium azide give rise to a volume of #36*L#?
• Why is the freezing point of a solution, LOWER than that of the pure solvent?
• Question #f7f3a
• Question #47084
• What are the products for the following chemical reaction: #Na_2CO_3•H2O + HCl ->#?
• What are the products of complete combustion of octane?
• Question #7bac6
• Question #4e3aa
• How does carbon form different molecules with oxygen?
• What are the spectator ions in #LiCl (aq) + AgNO_3 (aq) -> AgCl (s) + LiNO_3 (aq)#?
• In the equation #2C_2H_6 + 7O_2 -> 4CO_2 + 6H_2O#, if 15 g of #C_2H_6# react with 45 g of #O_2#, how many grams of water will be produced?
• What is the reaction #2Mg(s) + O_2(g) -> 2MgO(s)# is an example of what type of reaction?
• What type of reaction is #4Al + 3O_2 ->Al_2O#?
• Soaps form foam with hard water or soft water?
• What does Francium + water yield?
• What does pentane plus (#C_5H_12#) oxygen yield?
• Question #c0ab0
• Question #2d887
• What are the spectator ions in the equation #2Na^+(aq) + SO_4 ^(2-) (aq) + Ba^(2+)(aq) + 2Cl^(-)(aq) → BaSO_4(s) + 2Na^+(aq) + 2Cl^(-) (aq)#?
• Will hydrochloric acid oxidize the aluminum foil we use in the kitchen?
• How would #MnO_4^(-)#, and #SO_2(g)# interact?
• What signs indicate that a chemical reaction may have occurred?
• What is the chemical process that produces oxygen gas?
• The equation, #6CO_2 + 6H_2O -> C_6H_12O_6 + 6O_2#, is what type of reaction?
• What is a new substance formed in a chemical reaction called?
• What is the product of this combination reaction? #Al(s) + I_2(s) ->#?
• The equation #2C_3H_7OH(g) + 9O_2(g) -> 6CO_2(g) + 8H_2O(g) is an example of what type of reaction?
• In a chemical reaction, a new substance is formed when atoms do what?
• What type of reaction is this: Hydrogen (g) + iodine (s) #-># hydrogen iodide (g)?
• What is a 1° alcohol?
• How do you convert #N_2# to #NH_3# and #NO_3^-#?
• How does silicon dioxide react with hydrofluoric acid?
• How does lithium react with bromine?
• What happens when sodium chloride is added to a solution containing lead(II) nitrate?
• Does #Fe# react with concentrated #H_2SO_4#?
• What two substances could be produced in a combustion reaction?
• What type of reaction occurs when a candle is burned?
• What would you expect the combining ratio to be for alkali metals to be with a halogen? With oxygen?
• What quantities must be conserved in all chemical reactions?
• Sodium Bicarbonate reacts with Acetic Acid and causes a chemical reaction. The end products of this reaction are water and what compound?
• Cans for food and drinks are made from steel or aluminium The main metal in steel is iron. Iron is extracted by heating a mixture of iron oxide and carbon in a blast furnace. What type of reaction is this?
• What reaction occurs when calcium carbonate is treated (separately) with (i) nitric acid, and (ii) sulfuric acid?
• Methane bums in oxygen to yield carbon dioxide and water. The chemical formula for this reaction is #CH_4 + 2O_2 -> CO_2 + 2H_2O#. What is the product, or what are the products, of this reaction?
• Why does zinc metal react readily with dilute hydrochloric acid?
• How many grams of #O_2# are required to produce 358.5 grams of #ZnO# in #2Zn + O_2 -> 2ZnO#?
• What products result from the reaction of aluminum metal with hydrochloric acid?
• Question #f31ca
• What occurs when magnesium nitrate is mixed with potassium sulfate in aqueous solution?
• Why is it difficult to react nitrogen with hydrogen?
• What must be present for combustion to be initiated and sustained?
• What is the balanced chemical equation that describes the reaction between ammonia and hydrochloric acid?
• Question #36652
• What is the chemical reaction for photosynthesis?
• When two smaller atoms combine into a larger atom what has occurred?
• What occurs as two atoms of fluorine combine to become a molecule of fluorine?
• Question #62924
• What are the products when sodium hydroxide reacts with nitric acid?
• What are the products when magnesium oxide reacts with hydrochloric acid?
• What are the products when lithium hydroxide reacts with sulfuric acid?
• What are the products for Calcium + hydrochloric acid?
• What are the products of Sodium hydroxide + hydrochloric acid?
• What type of reaction is copper oxide + sulphuric acid? What are the products?
• What is a catabolic reaction?
• What is a product of respiration resulting from the breaking of carbon-carbon bonds?
• What does it mean when a reaction is spontaneous?
• To form 100 g of #H_2O_2#, 5.927 g of H must react with 94.073 g of O. How many grams of O would be needed to form 104 g of #H_2O_2#?
• A neutralization reaction between #KOH(aq)# and #H_2SO_4(aq)# would give which two products?
• In an experiment combining vinegar and baking soda, gas is given off. In this chemical reaction, what are the vinegar and baking soda?
• Question #522d4
• Question #ba865
• What does the symbol of a double arrow indicate in a chemical reaction?
• What is the reaction in which carbon dioxide, and dihydrogen are formed from carbon monoxide and water?
• Question #3cec1
• What is an example of a combination reaction?
• Question #127fe
• What are the definition of the three types of chemical reactions?
• What are the products of this reaction: #HC_2H_3O_2 + NaHCO_3 ->#?
• What is required for a chemical reaction to occur?
• Why does a reaction with nitric acid produce nitrogen gas?
• Question #9f2d5
• Question #88c61
• How can I get #"Fe"_2"O"_3# and #"FeO"# from #"Fe"#?
• Question #5eec6
• Question #d9f07
• How do silver ions interact with halide ions? How can the presence of ammonium in aqueous solution be evidenced?
• Question #69d7d
• In a butane lighter, 9.7 g of butane combine with with 34.7 g of oxygen to form g g carbon dioxide and 29.3 how many grams of water?
• What type of chemical reactions only occur if there is an input of energy?
• Question #eafbb
• What will be the products if magnesium bromide reacts with chlorine gas?
• Question #d0b9c
• Wood doesn't conduct heat so how does it catches fire ??
• Why does a soluble metal salt reacts with NaOH/KOH to produce salt and insoluble metal hydroxide?
• Do common salt and sodium hydroxide chemically react together and if they react what do they form on reacting?
• Question #b667a
• In any chemical reaction, what are the quantities that are preserved?
• You prepare benzhydrol via reduction of benzophenone with sodium borohydride. How can you use TLC to determine when the reaction is complete? How can you monitor the progress of the reaction with TLC?
• #C_2H_4 + 3O_2 -> 2CO_2 +2H_2O#. If you start with 45 grams of ethylene (#C_2H_4#), how many grams of carbon dioxide will be produced?
• Hydrochloric acid, or HCI, reacts with solid NaOH. What are the products of this chemical reaction?
• #Cu -> Cu^(2+) + 2e^-# What does this equation represent?
• Magnesium and dilute hydrochloric acid react to produce magnesium chloride solution and hydrogen: #Mg(s) + 2HCl(aq) -> MgCl_2(aq) + H_2(g)# What are two observations that could be made during the reaction?
• What type of reaction feels cold to the touch?
• What is a spectator ion in the reaction between #NaOH(aq)# and #H_2SO_4(aq)#?
• Zinc is added to a beaker containing hydrochloric acid, and the beaker gets warm. What type of reaction is this?
• What type of reaction leads to the formation of a precipitate?
• A chemistry has 14.5 g of Al and 7.5 g of #O_2#. What would the excess be for the following reaction: #4Al + 3O_2 -> 2Al_2O_3#?
• What are the substances present before a chemical reaction takes place?
• What are chemical process in which larger compounds are broken down into their monomers using water to break the bonds?
• What is the chemical process in which smaller compounds are joined to form larger compounds, releasing water?
• Why are phosphines stronger-field ligands than water?
• How do enzymes lower activation energy?
• How do reactants and products participate in in chemical reaction?
• If a chemical reaction takes place, what must change?
• What are five examples of combustion in your everyday life?
• What is #"combustion"#?
• Question #ee7fe
• What is the reaction between sulfur dioxide, #"SO"_2#, and potassium dichromate, #"K"_2 "Cr"_2"O"_7# ?
• Review this reaction: #H_2SO_4 + NaOH#. What are th product(s)?
• Consider this reaction: acid base + salt water. What type of reaction is this?
• Which of the listed reactions evolve a combustible gas...?
• How do you write balanced chemical, complete ionic, and net ionic equations for each of the following reactions?
• Equal quantities of sodium hydroxide, and hydrochloric acid are mixed. What is the colour of the solution if universal indicator is added?
• How would one write balanced chemical, complete ionic, and net ionic equations for the reactions between the following substances, which produce a gas?
• How would you complete this reaction: #Fe(s) + Al_2O_3(aq) ->#?
• Question #a289d
• Question #88747
• How do you finish the reaction: #Br_2(g) + KCl(aq) ->#?
• How do you finish the reaction: #Zn(s) + CuSO_4(aq) ->#?
• Excess hydrochloric acid in your stomach can be neutralized by magnesium hydroxide, which forms magnesium chloride and what?
• Question #eabdc
• What would happen if copper (II) chloride was placed into a solution of saturated calcium carbonate???
• Question #b129b
• Question #a2af6
• Question #5d9af
• How would you classify the reaction #2PbO + O_2 -> 2PbO_2#?
• Question #68168
• Question #13cc9
• What must occur for a change to be a chemical reaction?
• What is formed from the reaction of an acid and a base?
• Question #5d695
• What type of reaction illustrates how acid rain causes the decomposition of marble monuments?
• How do you complete the equation #C_8H_18 -> C_6H_14 + __#?
• What mass of oxygen is required to react with 150.0 g of benzene?
• What does hydrolysis of an organic amide yield?
• In what type of a reaction do two or more reactants combine to form a product?
• In what type of reaction does a single uncombined element replace another element in a compound?
• Question #964ac
• Question #edc6b
• Question #13205
• Is sulfuric acid a diprotic acid?
• Question #2e313
• Solid zinc is placed in a solution of copper(II) ions. Solid copper forms and zinc ions are present in solution. I) Identify what type of reaction this is II) Write the net ionic equation for this reaction III) Write two electron transfer half equations?
• Question #2d702
• How does calcium hydroxide react with ammonium chloride?
• How many grams of silver chromate will precipitate when 150 mL of 0.500 M silver nitrate are added to 100 mL of 0.400 M potassium chromate?
• Question #58932
• What do we do when our teacher makes a mistake? And how does hydrogen peroxide decompose?
• What is a measure of how quickly products form or given amounts of reactants react in a chemical reaction called?
• In the reaction #Fe -> Fe^(3+) + 3e^-#, what is the Fe atom?
• What is activation energy?
• What is the reaction represented by in the diagram below?
• To which substance is dilute sulfuric acid added to prepare lead(II) sulfate?
• What are the products of this reaction: #H_3PO_4(aq) + NaOH(aq) ->#?
• What are the two conditions under which nitrogen will react with oxygen?
• What is necessary for nitrogen in the air to combine with oxygen?
• How is the reaction between hydrogen sulfide and iron chloride possible?
• How does the reaction between formaldehyde and copper hydroxide take place?
• What are the chemical reactions within cells that are regulated by organic catalysts called?
• How many molecules of carbon dioxide will be produced if 20 molecules of propane react?
• Question #e2e04
• Why does Na2CO3 react with CaCl2 , but NaHCO3 doesen't?
• I put sugar on strawberry after few time they becom softened and juicy why ?
• Question #45b1a
• An exothermic reaction releases 86.5 kJ. How many kilocalories of energy are released?
• Question #058c7
• How does chlorine gas react to give chloride and hypochlorite ions in BASIC solution?
• How does barium carbonate decompose under heating?
• How do we represent the reaction of lithium metal with water?
• How would we represent the reaction of #SO_2# with #K_2Cr_2O_7# to give #SO_3#?
• Caramel forms when table sugar, #C_12H_22O_11#, reacts with oxygen. What elements make up caramel?
• Which species undergoes a loss of electrons in this equation: #Mg(s) + 2Ag^+(aq) -> Mg^(2+)(aq) + 2Ag(s)#?
• Besides energy, what is produced when hydrocarbons are burned?
• How do you identify the spectator ions in the neutralization of lithium hydroxide, LioH, with hydrobnomic acid, HBr?
• What type of reaction does the following chemical equation describe?
• Question #08c45
• If sodium iodide and calcium are mixed together, what are the resulting products?
• What burns to produce one product? What does not change litmus paper (either way)? a. carbon dioxide b. carbon monoxide
• Hydrogen peroxide is best kept in a refrigerator. Why?
• When vinegar and baking soda together, what is the new substance that is produced called?
• How are sodium and chloride dangerous when by themselves but safe for eating after reacting together?
• If a substance reacts with oxygen, what is the chemical reaction most likely?
• When vinegar and baking soda react together what new substance is produced?
• Which salt is produced when copper oxide reacts with hydrochloric acid?
• Question #95468
• Question #850fd
• What reaction yields hydrogen gas from magnesium metal and water?
• Question #005a0
• What is this equation an example of: #Zn + 2HCl -> ZnCl_2 + H_2#?
• Flammable and combustible liquids are a fire hazard. What does combustible mean?
• What happens when nitric acid and calcium oxide combine?
• Question #c4ae1
• What is the balanced chemical equation for the reaction between carbon monoxide, #CO#, and hydrogen gas, #H_2#, to make #CH_2OH#?
• Why is the aqueous solution of aluminium chloride acidic?
• What product results when sodium hydroxide reacts with hydrochloric acid?
• Question #a794b
• The equation #AX + BY -> AY + BX# is the general equation for what type of reaction?
• Which type of particle retains the identity of an element during a chemical type reaction?
• In what type of reaction do two or more substances combine to form a new compound?
• How would you determine the mass of hydrogen produced when 0.25 g of sodium reacts with water? Sodium hydroxide is the other product formed in the reaction.
• What is the equation for the reaction between calcium hydroxide and sulfuric acid?
• Question #75f48
• What occurs when magnesium nitrate is dissolved in water?
• Question #52de2
• 2.30 g of ethanol were mixed with aqueous acidified potassium dichromate(VI). The desired product was collected by immediate distillation under gentle warming. The yield of product was 70.0%. What mass of product was collected?
• What would you expect to happen when lithium metal is added to water?
• What is gas burning in an engine an example?
• What are the products for the following reaction: #Na_3PO_4 + CaCl_2 -> ?#
• Why don't we write #K(s) + 2H_2O(l)rarr K(OH)_2(aq) + 1/2H_2(g)#?
• Which are the spectator ions when a solution of copper(II) nitrate reacts with a solution of potassium hydroxide?
• Question #a903c
• Reaction Prediction?
• Elemental phosphorus gives #PH_3# and #Na^+""^(-)P(OH)_2# upon basic hydrolysis. How is the reaction formulated?
• Question #0e6ff
• Does hydrochloric acid react with silver metal? Would hydrochloric acid react with silver nitrate?
• How is iodine oxidized to iodate ion by nitric acid?
• Question #48144
• Why is this redox reaction not balanced? Please balance it. #"H"_2"SO"_4(aq) + "K"_2"Cr"_2"O"_7(aq) + "SO"_2(g) -> "Cr"_2"SO"_4(aq) + "H"_2"O"(l) + "K"_2"SO"(aq)#
• Question #cb30d
• What is the general formula for fermentation?
• When two substances react to form products, the reactant which is used up is called what?
• What are the products of this reaction: #Zn(s) + Pb(NO_3)_2(aq) -> ??#
• A solution of sodium hydroxide has a concentration of (2.1 x 10^-1)mol/L. What colour does the solution turn when a few drops of indigo carmine are added?
• Why is it important to specify the oxidation state of the iron oxide in a specific problem?
• Question #4d141
• Explain the mechanism for the #"Pt"#-catalyzed formation of water from #"H"_2# and #"O"_2#?
• What is #"ammonium hydroxide"#?
• Question #8b77f
• What is the balanced equation for the reaction between acetic acid and NaOH?
• A student investigated the reactions of copper carbonate and copper oxide with dilute hydrochloric acid. How can a sample of copper chloride crystals be made from copper carbonate and dilute hydrochloric acid?
• What are two driving forces of chemical reactions?
• Of what are mothballs composed? And why should they deter moths?
• You use 86.3 g #NO #and 25.6 g #H_2# in an experiment and produce 49.0 g of ammonia. How much excess reactant was used to make the 49.0 g of ammonia?
• What is the other product of the fermentation of a sugar, aside from ethanol?
• How does a student know that a chemical reaction has occurred?
• In the equation: #A + B -> C+D#, what are A and B?
• Given the balanced ionic equation representing a reaction below. In this reaction, where are electrons transferred from?
• Question #55d02
• Does zinc react in distilled water?
• Why does zinc increase in weight after being placed in NaOH?
• Does zinc react with sodium hydroxide?
• Does zinc react with NaOH when its not heated?
• Why does zinc increase in weight in water?
• How many moles of #PCl_5# can be produced from 55.0 g of #Cl_2# and excess #P_4#?
• What occurs when hydrochloric acid is added to silver nitrate solution?
• What is the difference between a double replacement and an acid-base reaction?
• What type of reaction is the burning of natural gas?
• A solution of iron(III)chloride is mixed with a solution of sodium hydroxide and reacts to yield solid iron (III) hydroxide and aqueous sodium chloride. What is the balanced chemical equation for this reaction?
• What happens when aluminium reacts with hydrochloric acid?
• When carbon dioxide is passed through lime water, it turns milky. Why?
• Question #e8eae
• Question #2cf9b
• Question #3795a
• Question #684ed
• Question #d28a4
• Question #a8a12
• Charlie is balancing an equation. She has identified the atoms and counted the nurmber of each in the reactarts and products. What would Charlie adjust to make the number of atoms in the reactants the same as the atoms in the products?
• What type of combustion occurs when there is a plentiful supply of #O_2#?
• Question #ac458
• What are the products for this reaction: NaOH + Na2S ?
• How many milliliters of 3.00 M #HCI(aq)# are required to react with 8.55 g of #Zn(s)#?
• Question #c7473
• Question #1bd0c
• How does sodium oxide react with water?
• Why does zinc increase in mass after being placed in NaOH?
• How does zinc metal react with hydrochloric acid?
• Question #3e98f
• What would occur in the reaction between zinc sulfate and barium chloride?
• Question #ed6e4
• Question #1ca3e
• Question #c2449
• Write and balance the following word reactions, and state if a precipitate is formed? Barium cyanide reacts with ammonium sulfate. Potassium hydroxide reacts with magnesium chloride.
• Question #b4aab
• Question #92328
• Question #90325
• How does aluminum form a complex ion upon oxidation?
• How does zinc form an insoluble zinc hydroxide in water?
• In which conditions #Na_2O# reacts with #H_2O# to form NaOH?
• Question #0322c
• What type of reaction is: ammonium nitrate -> dinitrogen monoxide + water?
• What does Zn + HCl +H20 form?
• Why does zinc decrease in mass after being placed in 1 molar of HCl?
• Anisole + NaOH? Is there any reaction between the two? Is anisole soluble in Naoh?
• What are the products when Alka Seltzer dissolves in water? Is it water and carbon dioxide, i'm not really sure with that
• Question #df03f
• Does it matter what initial concentration of reactants and products are used to determine the equilibrium constant?
• What is the best way to remove waters of hydration from a moist product in an experimental setting?
• I accidentally mixed CaOH, potassium permanganate, HCl, HNO3, NH4Cl, CuSO4, NaOH, NaHCO3. and a green liquid with yellow bubbles and a deep blue substance was formed. I want to know the reactions that actually happened and what are the substances?
• Question #85512
• Write the net ionic equation that describes the reaction that occurs when a solution of barium nitrate is added to a flask containing sulfate ions?
• Why does sulphuric acid react differently depending on whether it is added to water or water is added to it?
• Why is dry ether necessarily used for #C-C# bond formation reactions?
• Question #1dbe4
• Question #824ce
• What occurs when ammonia gas is reacted with #CuO#?
• Question #be667
• Question #a3f82
• What is the chemical equation for aluminum replacing hydrogen when the metal is placed in hydrochloric acid?
• Question #86eb9
• On heating ammonium dichromate, the gas evolved is?
• What is the chemical equation for butane burning completely in air?
• How does hydrogen peroxide react?
• The Friedel-Crafts alkylation of toluene gives a 54-17-29 ratio of the ortho/meta/para dimethylbenzene isomers at #0^@ "C"#. At #25^@ "C"#, the ratio changes to 3-69-28. Explain?
• How is chemical change defined?
• Question #44e48
• Why do ammonium salts give solutions whose #pH<7#?
• What might you observe when sodium hydroxide solution is added to calcium nitrate solution?
• The hydrocarbon styrene (C6CH5CH=-CH2) can be prepared by the dehydrohalogenation of either 1bromo-2 phenyl Ethane or 1 bromo 1-phenyl Ethane using alcoholic KOH. which alkyl halide will take part in the reaction?
• Question #637ff
• What is the reaction with #"Zn"# and an acid?
• Question #804cf
• What is #Fe_3O_4#, and how do we represent its formation from iron, and water?
• Question #a1fd3
• What are the consequence of burning hydrocarbons for energy?
• Question #16cdc
• Does sodium bicarbonate become heavier when heated above 500 degrees Celsius?
• How we can say NaOH is used in merserizing cotton? What does it mean? Thank you
• Observation of sodium sulfite solid added to a little alkaline potassium permanganate?
• Question #2d471
• Why CaO is added in water body before pisciculture?
• What is #"nascent oxygen"#, and how does it relate to potassium permanganate?
• Why can we not form a #:CH_2# molecule?
• Question #fad67
• Question #2c9a6
• Question #1993d
• When wood is burned, new substances are produced. What kind of reaction is this and what type of change occurs?
• Question #0a40a
• When aqueous solutions of calcium nitrate and ammonium carbonate are combined, solid calcium carbonate and a solution of ammonium nitrate are formed?
• How does the Law of Conservation of Mass apply to chemical reactions?
• Which gas molecule is given off as a waste product during the light dependent reactions?
• Question #4ca18
• Question #c648c
• Question #0bff2
• Question #4301e
• Question #4f432
• Zinc reacts with water to produce zinc hydroxide and hydrogen gas. What is the equation for this reaction?
• Why is hydrochloric acid used in the laboratory in preference to nitric or sulfuric acids?
• When dilute hydrochloric acid is placed on fock limestone and the non-sedimentary rock marble, a bubbling reaction occurs with both. What would this indicate?
• Question #5fb9b
• Question #435fd
• Write the net ionic equation including the phases?
• Question #2c774
• In the ionic equation for the reaction that occurs upon mixing aqueous solutions of #"NaCl"# and #"AgNO"_3#, what are the spectator ions?
• What do you call a substance that accelerates the rate of a chemical reaction?
• Question #4d824
• Question #24fc2
• What happens when two acids are mixed together?
• Consider the reaction when aqueous solutions of iron(III) chloride and silver(I) nitrate are combined. The net ionic equation for this reaction is:? label aq, l,g,s
• Write a balanced molecular, complete ionic, and net ionic equation for the reaction between "HBr" and #"NaOH"# ?
• What is the reaction between ammonia and bleach that makes it unsafe to mix the two?
• Calculate the final equilibrium concentrations (complex ion reaction)?