Matter and Chemical Reactions

Front

What is a chemical symbol?

Back

A one- or two-letter designation of an element.

Front

What are atoms?

Back

The building blocks of matter.

Front

What is an element?

Back

A pure substance that cannot be broken down into different types of substances.

Front

What are the visual clues that indicate a chemical reaction?

Back

A change of color, a gas produced, a solid product, and a transfer of energy.

Front

How many states of matter are commonly found on Earth?

Back

Three.

Front

What is matter?

Back

Anything that has mass and takes up space.

Front

What is a compound?

Back

A substance formed when two or more elements chemically bond together.

Front

What is a chemical reaction?

Back

A process that involves the rearrangement of the molecular or ionic structure of a substance.

Front

What is the law of conservation of mass?

Back

In a chemical reaction, mass is neither created nor destroyed.

Front

What are physical changes?

Back

Changes that affect one or more physical properties of a substance without altering its chemical composition.