Chemistry: Classification of Matter

Front

What is matter?

Back

Matter is anything that has mass and occupies space.

Front

What are the three main classifications of matter?

Back

The three main classifications of matter are elements, compounds, and mixtures.

Front

Define an element.

Back

An element is a pure substance that cannot be broken down into simpler substances by chemical means.

Front

Define a compound.

Back

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

Front

What is a mixture?

Back

A mixture is a combination of two or more substances that are not chemically bonded.

Front

What is the difference between a homogeneous mixture and a heterogeneous mixture?

Back

A homogeneous mixture has a uniform composition throughout, while a heterogeneous mixture has a non-uniform composition.

Front

Give an example of a homogeneous mixture.

Back

An example of a homogeneous mixture is saltwater.

Front

Give an example of a heterogeneous mixture.

Back

An example of a heterogeneous mixture is a salad.

Front

What is a physical change?

Back

A physical change is a change that affects one or more physical properties of a substance without altering its chemical composition.

Front

What is a chemical change?

Back

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