Physical vs. Chemical Changes

Front

What is a Physical Change?

Back

A change that affects one or more physical properties of a substance without altering its chemical composition.

Front

What is a Chemical Change?

Back

A change that results in the formation of new chemical substances.

Front

What are some indicators of a Chemical Change?

Back

Change in color, production of energy, formation of gas, and formation of a precipitate.

Front

Is melting ice a Physical Change or a Chemical Change?

Back

Physical Change.

Front

What happens during a Chemical Reaction?

Back

Atoms rearrange to form new substances.

Front

What is an example of a Physical Change?

Back

Breaking a glass bottle.

Front

What is an example of a Chemical Change?

Back

Burning wood.

Front

What does it mean when a substance changes state?

Back

It means the substance changes from one state of matter to another, such as solid to liquid.

Front

What is the difference between a Physical Change and a Chemical Change?

Back

Physical changes do not change the substance's chemical identity, while chemical changes do.

Front

What is a precipitate?

Back

A solid that forms and settles out of a liquid mixture during a chemical reaction.