Ch.2 Chemical Reactions Amplify Test

Front

What is a chemical reaction?

Back

A process in which atoms rearrange to form new substances.

Front

What is a product in a chemical reaction?

Back

The substance(s) that are created after a chemical reaction.

Front

What must be true in a balanced chemical equation?

Back

There must be the same number of atoms of each element on the reactants and products side.

Front

What is the missing component in a model of a chemical reaction?

Back

It should have the correct number of atoms for each element involved.

Front

What is the term for the substances that undergo a chemical change?

Back

Reactants.

Front

What is the law of conservation of mass?

Back

In a chemical reaction, mass is neither created nor destroyed.

Front

What is an example of a physical change?

Back

Melting ice.

Front

What is an example of a chemical change?

Back

Rusting of iron.

Front

What is a reactant?

Back

The starting substance(s) in a chemical reaction.

Front

What happens to bonds during a chemical reaction?

Back

Bonds between atoms are broken and new bonds are formed.