HOMS Review: Changes in Matter

Front

What happens in EVERY chemical change?

Back

A new substance is formed.

Front

How would you classify a substance that is made up of two or more elements chemically combined?

Back

Compound

Front

What is represented by a chemical formula?

Back

A compound.

Front

Is spoiling food a physical or chemical change?

Back

Chemical change.

Front

What are the reactants in the reaction between acetic acid and baking soda?

Back

Acetic acid and baking soda.

Front

What is a physical change?

Back

A change that does not alter the chemical composition of a substance.

Front

What is a chemical change?

Back

A change that results in the formation of new chemical substances.

Front

What is an element?

Back

A pure substance that cannot be broken down into simpler substances.

Front

What is a homogeneous mixture?

Back

A mixture that has a uniform composition throughout.

Front

What is a heterogeneous mixture?

Back

A mixture that consists of visibly different substances or phases.