Properties and Changes of Matter

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. Examples include cutting, melting, and dissolving.

Front

What is a chemical change?

Back

A chemical change is a change that results in the formation of new chemical substances. It involves a chemical reaction and the rearrangement of atoms. Examples include burning, rusting, and cooking.

Front

Is cutting a piece of paper in half a physical or chemical change?

Back

Physical change.

Front

Which of the following is a physical change of matter: water evaporating, paper burning, a nail rusting, or a silver spoon tarnishing?

Back

Water evaporating.

Front

What happens when two liquids are mixed and a precipitate forms?

Back

A chemical change has occurred.

Front

Is water an element?

Back

No, water is a compound made of hydrogen and oxygen.

Front

What is the neutrally charged particle in an atom?

Back

Neutron.

Front

What is an example of a chemical change?

Back

Burning wood.

Front

What is an example of a physical change?

Back

Melting ice.

Front

What is the difference between a mixture and a compound?

Back

A mixture is a combination of two or more substances that retain their individual properties, while a compound is a substance formed when two or more elements chemically bond together.