3.1 - Laws of Chemical Combination
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Practice Questions
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What does the Law of Conservation of Mass state?
💡 Hint: Think about how mass behaves in a closed system.
Give an example of a compound with a constant composition.
💡 Hint: Recall the components of water!
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Interactive Quizzes
Quick quizzes to reinforce your learning
What does the Law of Conservation of Mass state?
💡 Hint: Think about the behavior of mass in a closed container.
True or False: The ratio of elements in a compound can change based on the method of preparation.
💡 Hint: Recall the examples of fixed ratios for compounds.
1 more question available
Challenge Problems
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A student conducts an experiment where 12 g of sodium reacts with chlorine gas to produce sodium chloride. If the mass of sodium chloride produced is 17 g, what mass of chlorine was consumed in the reaction?
💡 Hint: Use the Law of Conservation of Mass!
In a closed system, 15 g of carbon and 40 g of oxygen react to form carbon dioxide. If the total mass of products is found to be 54 g, is the reaction in accordance with the Law of Conservation of Mass? Explain.
💡 Hint: Check whether the total mass before equals the total mass after the reaction.
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