Ch. 2 Properties of Matter

Front

What must occur for a change to be classified as a chemical reaction?

Back

A new product forms that was not present at first.

Front

What is the smallest basic unit of matter?

Back

An atom.

Front

How does ice differ from water at the molecular level?

Back

Ice has a different arrangement and motion of its molecules.

Front

Is it true that a physical property of paper is that it will burn easily?

Back

False.

Front

What is a physical property?

Back

A characteristic of a substance that can be observed without changing its identity.

Front

What is a chemical property?

Back

A characteristic that can only be observed during a chemical reaction.

Front

What is the difference between a physical change and a chemical change?

Back

A physical change does not alter the chemical composition of a substance, while a chemical change does.

Front

What is the definition of matter?

Back

Anything that has mass and takes up space.

Front

What are the three states of matter?

Back

Solid, liquid, and gas.

Front

What is an example of a chemical change?

Back

Rust forming on iron.