7.2.3 Modeling Conservation of Mass

Front

What happens to molecules and atoms during a chemical reaction?

Back

Molecules and atoms are rearranged.

Front

What are substances that form as a result of a chemical reaction called?

Back

Products.

Front

What does the law of Conservation of Mass state?

Back

Matter cannot be created or destroyed.

Front

What is the term for the number in front of a compound or element in a chemical equation?

Back

Coefficient.

Front

What is a chemical equation?

Back

Chemical formulas and symbols are written to represent a reaction.

Front

What are the starting substances in a chemical reaction called?

Back

Reactants.

Front

What is the purpose of coefficients in a chemical equation?

Back

To indicate the number of molecules or atoms involved in the reaction.

Front

What is the difference between reactants and products?

Back

Reactants are the starting materials, while products are the substances formed at the end of a reaction.

Front

Can matter be created or destroyed in a chemical reaction?

Back

No, according to the law of Conservation of Mass.

Front

What is a balanced chemical equation?

Back

An equation where the number of atoms for each element is the same on both sides.