AAD Law of Conservation of Mass

Front

What does the Law of Conservation of Mass state?

Back

Matter is neither created nor destroyed in a chemical reaction.

Front

True or False: The mass of the reactants equals the mass of the products in a chemical reaction.

Back

True

Front

What happens to the mass of matter during a chemical reaction according to the Law of Conservation of Mass?

Back

The mass remains constant; it does not change.

Front

Which of the following best represents the Law of Conservation of Mass in a chemical reaction?

Back

The mass of the reactants equals the mass of the products.

Front

What is a common misconception about the Law of Conservation of Mass?

Back

That mass can be created or destroyed during a chemical reaction.

Front

In a closed system, if 10 grams of reactants are used, how much mass will the products have?

Back

10 grams.

Front

What is the significance of subscripts in a chemical formula?

Back

Subscripts indicate the number of atoms of each element in a compound.

Front

If a chemical reaction produces 5 grams of product, how much mass of reactants was used?

Back

5 grams, according to the Law of Conservation of Mass.

Front

What is an example of a physical change where mass is conserved?

Back

Melting ice; the mass of the ice remains the same before and after melting.

Front

What is the role of a chemical equation in demonstrating the Law of Conservation of Mass?

Back

It shows that the total mass of reactants equals the total mass of products.