2/1 ADV Physical and Chemical Changes

Front

What is a physical change?

Back

A physical change is a change that does not result in the formation of a new substance. Examples include melting, freezing, and dissolving.

Front

What is a chemical change?

Back

A chemical change is a change that results in the formation of one or more new substances. Examples include burning, rusting, and cooking.

Front

Is melting ice a physical or chemical change?

Back

Melting ice is a physical change.

Front

What happens to the substance during a physical change?

Back

The substance may change its form or state, but its chemical composition remains the same.

Front

What is an example of a reversible physical change?

Back

Dissolving sugar in water is an example of a reversible physical change.

Front

What is an example of an irreversible physical change?

Back

Burning wood is an example of an irreversible physical change.

Front

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

Back

A physical change does not create a new substance, while a chemical change does.

Front

What is an example of a chemical change?

Back

Rusting of iron is an example of a chemical change.

Front

What occurs during a phase change?

Back

During a phase change, a substance changes from one state of matter to another, such as solid to liquid.

Front

Is freezing water a physical or chemical change?

Back

Freezing water is a physical change.