CHEM U3 Flashcard Review (Physical & Chemical Properties & Changes)

Front

TRUE or FALSE: Most substances expand as they heat up and contract as they cool.

Back

TRUE

Front

What kind of property is REACTIVITY?

Back

Chemical property

Front

What kind of property is VISCOSITY?

Back

Physical property

Front

What kind of property is MALLEABILITY?

Back

Physical property

Front

This material does not have a definite shape or volume. What is it?

Back

Gases

Front

What is the definition of a physical property?

Back

A characteristic of a substance that can be observed or measured without changing the substance's identity.

Front

What is the definition of a chemical property?

Back

A characteristic of a substance that describes its ability to change into different substances.

Front

What happens to the particles of a substance when it is heated?

Back

The particles move faster and tend to spread apart, causing the substance to expand.

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 physical change?

Back

Melting ice into water.