Physical and Chemical Changes

Front

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

Back

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

Front

What is an example of a physical change?

Back

Melting ice is an example of a physical change.

Front

Is breaking glass a chemical or physical change?

Back

Breaking glass is a physical change.

Front

What happens to the substance during a chemical change?

Back

During a chemical change, the substance undergoes a transformation that results in the formation of one or more new substances.

Front

What is an example of a chemical change?

Back

Copper metal turning green due to oxidation is an example of a chemical change.

Front

What is the definition of a physical change?

Back

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

Front

Can a chemical change be reversed?

Back

Chemical changes are often not reversible, as they result in the formation of new substances.

Front

Can a physical change be reversed?

Back

Many physical changes are reversible, such as freezing and melting.

Front

What is an indicator of a chemical change?

Back

Indicators of a chemical change include color change, gas production, temperature change, and the formation of a precipitate.

Front

What is an example of a reversible physical change?

Back

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