Chemical and Physical Changes

Front

What happens during an exothermic chemical reaction?

Back

Thermal energy is leaving the reaction.

Front

What is the change called when water is heated and changed to steam?

Back

Physical Change

Front

What type of property is a bitter taste?

Back

Physical property

Front

What is the term for the amount of space an object occupies?

Back

Volume

Front

What is a chemical change?

Back

When two or more substances combine to make a new chemical substance.

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

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

Back

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

Front

What is the definition of mass?

Back

The amount of matter in an object.

Front

What is the definition of a physical property?

Back

A characteristic of a substance that can be observed without changing its chemical composition.