Chemical Interactions Inv. 4 Review

Front

What happens to gas particles when they are compressed?

Back

The particles are pushed closer together.

Front

What is a chemical reaction?

Back

A process where starting substances change into new substances.

Front

What happens to the volume of a piece of wood when it is heated?

Back

It increases.

Front

Which states of matter have no definite shape?

Back

Gases and liquids.

Front

How are solid particles arranged?

Back

They are tightly bonded.

Front

What is the definition of matter?

Back

Anything that has mass and takes up space.

Front

What happens to the particles in a solid when it is heated?

Back

They vibrate faster and may eventually break free from their fixed positions.

Front

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

Back

A physical change alters the form of a substance but not its chemical composition, while a chemical change results in the formation of new substances.

Front

What is an example of a chemical reaction?

Back

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

Front

What is the state of matter with a definite shape and volume?

Back

Solid.