Elements, Compounds, and Mixtures

Front

What are the three main categories of matter?

Back

Elements, Compounds, and Mixtures.

Front

What is a mixture?

Back

A combination of two or more substances that retain their individual properties.

Front

How can mixtures be separated?

Back

Mixtures can be separated by physical means.

Front

What is an element?

Back

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

Front

What is a compound?

Back

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

Front

Can compounds be separated by physical means?

Back

No, compounds can only be separated by chemical means.

Front

What is an example of a compound?

Back

Water (H2O) is an example of a compound.

Front

What happens to the properties of substances in a mixture?

Back

The substances in a mixture retain their physical and chemical properties.

Front

What is the difference between a pure substance and a mixture?

Back

A pure substance has a uniform and definite composition, while a mixture contains two or more substances that are not chemically combined.

Front

What is the definition of a homogeneous mixture?

Back

A mixture that has a uniform composition throughout, such as saltwater.