Law of Conservation of Mass Worksheet
Explore the Law of Conservation of Mass with various exercises including multiple-choice, true/false, fill-in-the-blanks, and short answer questions.
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Law of Conservation of Mass
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Read each question carefully and answer to the best of your ability.
1. Which scientist is credited with formulating the Law of Conservation of Mass?
Isaac Newton
Antoine Lavoisier
Marie Curie
Albert Einstein
2. The Law of Conservation of Mass states that during a chemical reaction, the total mass of the reactants is always less than the total mass of the products.
True
False
3. In a closed system, mass is neither nor .
4. The Law of Conservation of Mass is fundamental to understanding equations.
5. A student mixes 10 grams of baking soda with 15 grams of vinegar in a sealed container. After the reaction, what is the total mass of the contents in the container? Explain your answer.
Consider the following image illustrating a balance scale:

6. If a chemical reaction occurs in a closed system, and the reactants are placed on one side of a perfect balance scale, and the products on the other, what would you observe about the balance? Justify your answer using the Law of Conservation of Mass.
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