Chemistry Test Review

Front

What is the Conservation of Mass?

Back

Matter is not created or destroyed in a chemical reaction.

Front

What two types of measurements make up Density?

Back

Mass and Volume.

Front

If you start a chemical reaction with 4 atoms of oxygen, how many atoms will you have after the reaction?

Back

4 atoms.

Front

What is a blend of 2 or more substances called?

Back

Mixture.

Front

What does the term 'element' refer to?

Back

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

Front

What is a compound?

Back

A substance formed when two or more elements are chemically bonded together.

Front

What is the formula for calculating density?

Back

Density = Mass / Volume.

Front

What is an example of a physical change?

Back

Melting ice.

Front

What is an example of a chemical change?

Back

Burning wood.

Front

What is the difference between a mixture and a compound?

Back

A mixture is a physical combination of substances, while a compound is a chemical combination.