Mass Conservation

Topic Page

Questions

• How does a balanced equation illustrate the Law of Conservation of Mass?
• Question #42aa4
• Why is the law of conservation of mass important for balancing equations?
• How does the mass before a reaction compare to the mass after a reaction according to the law of conservation of mass?
• Why is conservation of mass a law?
• How does the law of conservation of matter relate to biology?
• How do you prove law of conservation of mass?
• How can the law of conservation of mass apply to a burning log?
• Explain how the law of conservation of mass is the basis for all stoichiometry?
• How can I explain how the law of conservation of mass applies to garbage?
• How does the law of conservation of energy apply to calorimetry?
• What is mass conservation?
• How do chemical equations demonstrate the conservation of mass?
• Question #6ea4f
• Question #5e9e4
• Question #b2388
• How do I determine the mass of zinc iodide from the filtration of a zinc iodide solution?
• How do I calculate the mass of zinc and iodine that are consumed to produce zinc iodide?
• Question #922a3
• Question #3c9f7
• Question #e888d
• Question #12f2e
• Question #ee5e8
• Question #c4615
• How matter is conserved during chemical reactions?
• Question #26c6d
• Question #d2801
• Question #585a0
• Question #1b7c6
• Question #a409b
• Why are you shorter in the morning, and lighter in the night? Does this not violate the principle of conservation of mass?
• Question #566d2
• Question #3136a
• How is mass conserved in chemical reactions?
• Suppose a log's mass is 5 kg. After burning, the mass of the ash is 1 kg. What may have happened to the other 4 kg?
• Question #8bc4e
• Question #07d8b
• Why must chemical equations be balanced?
• Oxygen and hydrogen react explosively to form water. In one reaction, 6 g of hydrogen combines with oxygen to form 54 g of water. How much oxygen was used?
• Potassium has a mass of 39.1 amu. Chloride has a mass of 35.45 amu. By the law of conservation of mass, what is the mass of potassium chloride, when these two ions combine?
• What is the mass of #3.34xx10^23# #"water molecules"#?
• A 50.0-kg mixture of salt and water is 15.0% (by mass) salt. What is the mass of salt and water in the mixture?
• What is the gram formula mass of #Na_2CO_3 * 10H_2O#?
• What fundamental law is demonstrated in balancing equations?
• What is the formula mass for #C_5H_10N#?
• From where does the hydrogen that is used industrially derive?
• Question #090a5
• Question #0e796
• What is the Law of Conservation of Mass?
• How is the Law of Conservation of Mass used in chemistry?
• How does the law of conservation of matter apply to chemical equations?
• A sample of ammonia liberates 5.66 kJ of heat as it solidifies at its melting point. What is the mass of the sample? #DeltaH_(solid) # = -5.66 kJ/mol?
• Using the following reaction, if 1.75 moles of nitrogen gas are reacted with excess hydrogen gas, how many moles of #NH_3# will be produced? #N_2 + 3H_2 -> 2NH_3#?
• How many grams of oxygen are required to produce 55.6 g water vapor?
• Many moles of aluminum do 36.3x10^24# aluminum atoms represent?
• 82. Toilet bowl cleaners often contain hydrochloric acid to dis- solve the calcium carbonate deposits that accumulate with in a toilet bowl. How much calcium carbonate in grams can be dissolved by 5.8 g of HCl?
• What is the mass of an object that has the density of 14 g/ml and volume of 10 mL?
• Because of binding energy, the atomic mass of a nucleus compared to the sum of the masses of its individual nucleons (protons plus neutrons) is what?
• You measured the mass of three 25-centavo coins. The measurements are : 3.48 g, 3.5 g and 3.499 g, what is the mass of the three coins?
• What is the molar mass of cholesterol if 0.00105 mol weighs 0.406g?
• Potassium is a very flammable metal if it comes in to contact with water. As it burns with the water it creates potassium hydroxide (#KOH#) If you separate the potassium out from 50 grams of #KOH#, how many grams of potassium would you have?
• The molar mass of calcium chloride (CaCl2) represents the mass of one mole of what?
• How do you determine the mass of carbon dioxide produced when 0.85 g of butane reacts with oxygen according to the following equation: #2C_4H_10 + 13O_2 -> 8CO_2 10H_2O#?
• How do you calculate the mass of #3.24x10^18# atoms of iron?
• How does hydrogen reduce cupric oxide?
• Question #4d229
• What is the mass of 29.6 mol of the element nickel (Ni)?
• Question #b97d6
• What does the mass of the reactants always equal?
• Question #7071f
• How do we know how to represent chemical reactions?
• When 3.0 g of carbon is burnt in 8.0 g of oxygen, 11.0 g of carbon dioxide is produced. what is the mass of carbon dioxide will be formed when 3.0 g of carbon is burnt in 50.0 g of oxygen? Which law of chemical combination will govern the answer?
• Why does mass always remain constant?
• How would you define conservation of mass?
• What can you say about the mass of the reactants in a chemical reaction?
• What happens to mass during chemical and physical changes?
• Question #7ddae
• What is the law that states that mass cannot be created or destroyed in ordinary chemical and physical changes?
• In the reaction: #A + B -> C#, if 4.2 grams of A react to make 6.8 grams of C, then how many grams of B were reacted?
• A 10.0 g sample of magnesium reacts with oxygen to form 16.6 g of magnesium oxide. How many grams of oxygen reacted?
• How do conservation of mass and conservation of charge apply to chemical reactions?
• Question #46d52
• What quantities are conserved in a chemical reaction?
• If a #5.0*g# mass of calcium carbonate is strongly heated to give a #2.8*g# mass of calcium oxide, and a #2.2*g# mass of carbon dioxide, how does this demonstrate the conservation of mass? How is this represented as an equation?
• Question #c6bc1
• A #7.11*g# mass of salt is #22.34%# sodium. What is the mass of sodium in this quantity?
• How do we measure the mass of butane used by a heater over a day's use?
• Question #713ac
• Why must chemical equations be stoichiometrically balanced?
• #BaCO_3 + C(s) + H_2O(l) -> CO(g) + Ba(OH)_2#. If 394 g of #BaCO_3# are reacted with excess carbon and water, what mass of #Ba(OH)_2# should be produced?
• How do balanced chemical equations illustrate the law of conservation of mass?
• Pure copper may be produced by the reaction of copper(I) sulfide with oxygen gas as follows: #Cu_2S(s) + O_2(g) -> 2Cu(s) + SO_2(g)#. What mass of copper(I) sulfide is required in order to prepare 0.650 kg of copper metal?
• If you are given the amount of #H_2O# = 3.00 mol how can you find an unknown of mass of #CO_2# in grams?
• What is conserved in the reaction shown? #N_2(g) + 3F_2(g) -> 2NF_3(g)#?
• Consider the unbalanced equation: #C_6H_14 + O_2 -> CO_2 + H_2O#. What mass of #O_2# is required to react with #"11.5 g"# of #C_6H_14#?
• Question #63acc
• How would you summarize the Law of Conservation of Mass when dealing with a chemical change?
• Question #30c0c
• What is the first law of thermodynamics and how does it apply to chemistry?
• In any chemical reaction, is the mass of the products is less than the mass of the reactants?
• What does the total mass before a chemical reaction equal?
• Is conservation of mass absolute?
• Mass of candle 0.72 g before burning. What is the mass of the products of this reaction? Would that be the same thing as weighing the candle again (the mass is 0.27 g after burning)?
• Question #9c5cf
• Is #2H_2(g) + O_2(g) rarr 2H_2O(l)# the same as #H_2(g) + 1/2O_2(g) rarr H_2O(l)#?
• Question #a4579
• Does the process of dissolving Alka-Selzer in water disobey the Law of Conservation of Mass?
• Please explain the law of reciprocal proportion with an example?
• Does the mass of a gas DECREASE when it is heated?
• Based on conservation laws, how does the mass of the neutron compare to the mass of the proton?
• A reaction occurs between two liquid substances in a sealed jar. What will happen to the mass of the sealed jar and is contents after the reaction occurs?
• What will happen to the weight of a jar containing the water and sugar after some of the sugar dissolves?
• Question #aee33
• Question #1663b
• What does the Law of Conservation ot Mass state about a chemical reaction?
• A chemist heats 100.0 g of #FeSO_4 * 7H_2O# n a crucible to drive off the water. If all the water is driven off, what is the mass of the remaining salt?
• Does a cell take in oxygen and nutrients from the environment? How did the first cell form?
• Question #0601d
• What is the density of a solution composed of #189*mL# of water, and #54*g# of salt?
• An empty crucible with a mass of 34.24 g has a mass of 38.35 g when it contains a compound. What is the mass of the compound?
• Question #51e0b