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2 cards from this section. Quick, good the night before a test.
Define the Law of Conservation of Mass.
Think about how mass behaves in reactions.
What are reactants in a chemical reaction?
Reactants are on the left side of a chemical equation.
What does the Law of Conservation of Mass state?
Think about whether mass can change during reactions.
True or False: The total mass of products is less than reactants in a chemical reaction.
Recall what happens during chemical reactions.
A chemical reaction produces 150g of product from 100g of substance A and 60g of substance B. How do you reconcile the 10g difference?
Investigate what might prevent the reaction from following the law.
In a combustion reaction, a sample of methane completely combusts using 64g of oxygen. Calculate the mass of products formed and discuss the implications.
Apply conservation principles here to arrive at the solution.
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