Ch 9, 8th Grade

Match it! Select the correct answer from the pull down...Good luck!

The minimum amount of energy needed to start a chemical reaction is called

The substances to the left of the arrow in a chemical equation are called the

A number placed in front of an element symbol or chemical formula is called a

A reaction in which a single reactant breaks down into two or more products is called a

A reaction that absorbs energy is called

Negative ions in 2 compounds switch places in which kind of reaction?

Chemical changes do NOT result in a new substance being formed.

We can make a chemical reaction occur faster if we