Physical or Chemical Change/Phases

Front

What is the primary difference between the gas phase and the solid phase in terms of molecular arrangement?

Back

In the gas phase, molecules are farther apart than in the solid phase.

Front

What is considered the fourth state of matter that consists of electrically charged particles?

Back

Plasma.

Front

What type of change occurs when water boils?

Back

Physical change.

Front

What happens to a liquid when it loses heat?

Back

It becomes a solid.

Front

What type of change occurs when salt is dissolved in water?

Back

Physical change.

Front

Define a physical change. Give an example.

Back

A physical change is a change that affects one or more physical properties of a substance without altering its chemical composition. Example: Melting ice.

Front

Define a chemical change. Give an example.

Back

A chemical change is a change that results in the formation of new chemical substances. Example: Rusting of iron.

Front

What is the process called when a solid turns directly into a gas?

Back

Sublimation.

Front

What is the process called when a gas turns into a liquid?

Back

Condensation.

Front

What is the term for the change from liquid to solid?

Back

Freezing.