Chemical & Physical Changes

Front

What is the law of conservation of matter?

Back

The law of conservation of matter states that matter cannot be created or destroyed in a chemical reaction; it can only change forms.

Front

What happens during a chemical change?

Back

During a chemical change, one or more substances with different chemical properties are formed.

Front

What is 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

What is a chemical change?

Back

A chemical change is a process that transforms one or more substances into different substances with new chemical properties.

Front

Can a physical change create a new substance?

Back

No, a physical change does not create a new substance.

Front

Can a chemical change create a new substance?

Back

Yes, a chemical change creates a new substance.

Front

What is an example of a physical change?

Back

An example of a physical change is condensation on a glass.

Front

What is an example of a chemical change?

Back

An example of a chemical change is lighting a match.

Front

What is a precipitate?

Back

A precipitate is a solid that forms and settles out of a liquid mixture during a chemical reaction.

Front

What is an indicator of a chemical change?

Back

An indicator of a chemical change can include color change, gas production, or the formation of a precipitate.