Chapter 2 Review: Matter

Front

Which state of matter has tightly packed molecules?

Back

Solid

Front

What does a sudden change in color tell us?

Back

There is a chemical change.

Front

Is sharpening a pencil a physical or chemical change?

Back

Physical change.

Front

What is copper classified as?

Back

Element.

Front

Which of the following is NOT a sign of a chemical change?

Back

Change in state of matter.

Front

What are the three states of matter?

Back

Solid, liquid, gas.

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 compound?

Back

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