Chemical Reactions

Front

What is a chemical reaction?

Back

A process in which atoms rearrange to form new substances.

Front

What is rust?

Back

A red, flaky substance that forms when certain metals react with water and oxygen.

Front

What is the formula for density?

Back

D = mass / Volume.

Front

What is the boiling point?

Back

The temperature at which matter changes from a liquid to a gas.

Front

What is NOT evidence of a chemical reaction?

Back

Melting.

Front

What happens during a chemical reaction?

Back

Atoms rearrange to form new substances.

Front

What is produced in a chemical reaction that can indicate a change?

Back

Light, heat, or gas.

Front

What is the difference between a physical change and a chemical change?

Back

A physical change does not alter the substance's chemical composition, while a chemical change does.

Front

What is an example of a chemical reaction?

Back

Burning wood, which produces ash, smoke, and gases.

Front

What is the law of conservation of mass?

Back

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