Answers created by Ernest Z.
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How do you name this compound?
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How do i answer the question,explain the reaction?
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How to name this in IUPAC nomenclature???
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Is sulphurous acid a volatile or non-volatile,give reason?
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Can avogadro's number represent volume of particles and mass of particles?
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Tautomer of 3,4,4-Trimethylcyclohex-2,5dien-1-one?
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How do I match these cholesterol terms?
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How do I do this multistep? (only the question is in black; ignore what is written in pencil)
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Solid iron(II) fluoride (FeF2, Ksp= 2.36 x 10-6) is dissolved in water. If 8.1 x 10-3 mol L-1 of iron(II) ion is found to be in solution, how can we describe the solution?
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Which species would act as the cathode in the following reaction?
4 Au(s) + 16 Cl-(aq) + 3 O2(g) + 6 H2O(l) → 4 AuCl4-(aq) + 12 OH-(aq)
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How do I match these bio-chemistry terms?
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The solubility of Fe(OH)2 is 2.1 x 10-4 g L-1. What is the Ksp for Fe(OH)2 at 25 °C?
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Iupac name of benzyl ethyl ether?
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What is ozonolysis of 2-methylbuta-1,3-diene?
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How do I match these chemistry terms?
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Some help please there is an image of the question below ??
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Question is below some help please ???
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A solid and a liquid are shaken together in a test tube to produce a clear blue liquid.
Which of the following best describes the behavior of the above pair of substances?
soluble
insoluble
miscible
immiscible
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1-octanol is also called n-octanol.What does "n" stand for?
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Assuming a heart stops beating, what cellular process will be affected from the loss of oxygen, blood glucose, and waste removal?
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Find the mass of 100cm^3 of magnesium. The density of magnesium is 1.75g/cm^3?
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Is magnesium carbonate soluble or insoluble?
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Questions is below please help ?
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For the Hall-Héroult process, how would you determine the two half-reactions (anode and cathode) which make up this process, complete with electrons? Also by balancing the half-cells and determining how the net-ionic equation is obtained?
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The volume of gas in a balloon is 1.90L at 41C. The balloon is heated, causing it to expand to a volume of 5.70L. What is the new temperature of the gas inside the balloon?
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Calculate the pH of a #"0.2 M"# solution of #"NaC"_2"H"_3"O"_2# given that the hydrolysis constant is #K_h = 5.6xx10^(-10)#?
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How much gram of urea dissolved in 100 gm of water to create a difference of 105°C between freezing point and boiling point?
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Bond angle in NH3BF3?
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Cr2O7^2- +SO3^2-=Cr^3+ +SO4^2-
Balance the ionic equation?
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Could i have some help please ??
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Nitrate anion solution is prepared by dissolving 3g of potassium nitrate in 250ml of water. What is the concentration of nitrate anion in ppm, molarity, mass percentage?
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How many esters with the molecular formula #C_5H_10O_2# can be made by reacting a primary alcohol with a carboxylic acid?
A. 4
B. 5
C. 6
D. 8?
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Substance M is refluxed with aqueous sodium hydroxide. One of the products of this reaction reacts with alkaline aqueous iodine to give a pale yellow precipitate. Which compounds could be substance M?
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How would i answer this question ?
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Which one is stronger donor compounds ?
N(CH3)2 , NHCH3 , NH2
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7300.00 has how many significant digits?
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Chemistry Equillibrium help (picture)?
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What is the most stable form of the following compounds?
(i.e., draw the most stable form in chair form of both the compounds)
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What is the calculated value of the cell potential at 298K for an electrochemical cell with the following reaction?
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14.4 g sample of liquid ammonia is heated at a constant pressure of 1 atm from a temperature of 239.8 K to a temperature of 324.9 K. How much energy in kJ is required?
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Is this the correct nomenclature for the amine in the photo?
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How do I calculate the average atomic mass of element X?
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Which organic nomenclature is correct?
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What is the correct answer for these question ?
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Neutralisation ionic equation help please?
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Is this numbering on the organic compound which has both alkene and alkyne is correct?
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What mass of the substance T will be extracted from 150 g of the solution when we cool the solution from 50 ° C to 20 ° C?
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Is this name for the organic compound on the picture and the numbering is correct?
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Buffer Solution Help ?????
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1-aldo-2-methylcyclohex-1-ene is passed through n2h4 in H2O 2 solution. The product is 1-aldo-2-methylcyclohexane with the syn addition of hydrogen atoms. Why the hydrogen atoms are added from the same side?
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How do i name this compound according to IUPAC system?,
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Correct major product of reaction is ?
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If 1000 molecules of HC2H3O2 are placed into solution. How many hydronium ions will form?
1
5
10
100
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What is the IUPAC name of this compound?
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How to find the molecular formula of an unknown substance?
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40k40 +0e 19 20 -1?
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How many alkene structural isomers does the molecule below have? The molecule below counts as one isomer.
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The concentration of #"OH"^-# ions in a solution left after mixing #100ml# of #0.1M# #"MgCl"_2# and #100ml# of #0.2M# #"NaOH"# (#K_(sp)" of Mg"("OH")_2=1.2*10^-12#)?
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Calculate the equilibrium constant at 25 oC for the reaction above?
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Why three hydroxyl groups cannot stay together with a carbon atom but it forms ketone? Is it because of steric?
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What is the common name of this organic group?
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What is the trivial (common name) name of this group?
(Organic Chemistry)
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What removes liquid and solid wastes from the body?
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What is the name of this compound?
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Identify the compounds in this MCQ.?
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Hi can i please have some help thanks ?
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Consider a weak acid #"HA"#, where #"A"^(-)# is some arbitrary anion and #"HA"(aq) + "H"_2"O"(l) rightleftharpoons "H"_3"O"^(+)(aq) + "A"^(-)(aq)#. Suppose you add some #"NaA"(s)# to #"H"_2"O"(l)#. What is the pH of the solution?
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What are the three possible Lewis structures for #C_2H_2Cl_2#?
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What is the product?
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45 ml of 1.89E-2 M HC2H3O2 is prepared at 25 C
ka is 1.75E-5
1. What is the percent ionization of the acid? pH?
2. What is the percent ionization of the acid and pH if 1.8 grams of NaC2H3O2 is added to the solution?
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In #"XeF"_3"O"^-#, does the oxygen occupy the axial position in the trigonal bipyramidal or the equatorial position? and why?
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Balance: H2C2O4(aq) +K2CrO4(aq) + HCl(aq) →CrCl3(aq) + KCl(aq) + H2O(l) +CO2(g)?
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What are the products? CH3CH(OH)CH(CH3)CH2CH3 [3-methyl-2pentanol]+ HCl=?
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Can anyone explain the reaction mechanism below with a diagram of the movement of electrons?
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Why is methyl pyridine acidic?
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Can anyone please answer this chemistry difficulty?
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Which one is correct 3 ethyl 2 methylcyclohex 1 ene or 6-ethyl 1-methyl cyclohex 1 ene?
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Where does histamine come from?
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A #"10.00 mL"# sample of #"0.125 M"# hydroiodic acid is titrated with #"0.100 M"# potassium hydroxide. Determine the #"pH"# of the solution in the flask when the following volumes of titrant have been dispensed from the buret?
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Rank the following in order of increasing strength of ionic bonds? #"NaCl", "Mg"_3"N"_2, 2"CaCl"_2, "Na"_3"PO"_4#
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How many grams of NH4Cl are dissolved in 100 g of water at 90 ºC?
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What is the ICD-9-CM code for gastrointestinal bleeding secondary to adverse effects of warfarin?
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What is the oxidation number of iron in goethite?
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Are the following compounds enantiomer?
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For women in the United States, what is the lifetime risk of breast cancer?
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1bromopropane to 2bromopropane complete the reaction?
Thanks
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What is the bond polarity of CH4?
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Calculate the total number of cyclic isomeric carbonyl compounds of molecular formula C5H8O which can't show geometrical isomerism?
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Use conventional cell notation to draw the copper-silver cell and calculate the standard E.M.F of the cell and write a balanced equation for the overall cell reaction?
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What is the IUPAC name for the following?
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What is the Fisher projection of #\text{(s)}-3-\text{bromo}-3-\text{chlorohexane}#?
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Calculate the value of #K_p# for the reaction #"H"_2(g) + "Cl"_2(g) rightleftharpoons 2"HCl"(g)#, given the following reactions and their #K_p#?
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How do you write balanced, net ionic equations for 1). #"Cu"^(2+) and text(F)^-#, and #"Cu"^(2+) and "Cl"^-#?
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Calculate the titration of 25ml of 0.2M maleic acid with 0.2M sodium hydroxide. Calculate the ph of the titration curve using points of the curve
a) 0ml
b) 12ml
c) 25ml
d) 37.5ml
e) 50ml?
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K2Cr2O7 + H2SO4 + SO2 = K2SO4 + Cr2(SO4)3 + H2O balance by partial equation method??
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Please explain about the way to calculate the number of atoms of a certain element in a given mass of a compound?
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The melting of ice at body temperature is an endothermic procesd thus eating ice counteracts exothermic metabolic reaction how much ice would you eat to counteract the heat produced by eating 28.3g of peanuts a)78g b) 1100grams?
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Starting with #"ethyl chloride"#, how could we make #"n-butane"#?
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Can anyone plz tell me why do we write sodium at the end of the compound formed when acetic acid is reacted with sodium bicarbonate?
CH3COOH + NaHCO3->CH3COONa+CO2+H20
^that is chemical equation
.. so why is Na written at the end of CH3COONa
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How many joules are required to heat up a cup of water from 14.5°c to 99.0°c? 1cup=8ounces;1ounce=29.573ml;DH2O at 14.5°c=0.999174g/ml.can anyone help please and thank you.
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