Physical vs. Chemical Change

Front

What is a Physical Change?

Back

A change affecting the form of a chemical substance, but not its chemical composition.

Front

What is a Chemical Change?

Back

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

Front

Is mixing blue liquid and yellow liquid to make green liquid a Physical Change?

Back

Yes, it is a Physical Change.

Front

Is rusting an example of a Chemical Change?

Back

Yes, rusting is a Chemical Change.

Front

What happens to the mass of a substance during a Physical Change?

Back

The mass remains the same.

Front

What is an example of a Physical Change?

Back

Melting ice.

Front

What is an example of a Chemical Change?

Back

Burning wood.

Front

True or False: A change in density is a Physical Change.

Back

True.

Front

What is the mass of a cup after adding 6 g of liquid wax to a 12 g cup?

Back

18 g.

Front

True or False: Chemical Changes can often be reversed easily.

Back

False, they are usually not easily reversible.