Pure Substances vs. Mixtures

Front

What is an element?

Back

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

Front

What does a mixture of elements represent?

Back

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

Front

Is neon a pure substance or a mixture?

Back

Neon is a pure substance.

Front

What is saltwater classified as?

Back

Saltwater is classified as a mixture.

Front

Is Dr. Pepper a pure substance or a mixture?

Back

Dr. Pepper is a mixture.

Front

What is a pure substance?

Back

A pure substance is a material that has a constant composition and cannot be separated into other materials by physical means.

Front

What is a mixture?

Back

A mixture is a combination of two or more substances that are not chemically bonded and can be separated by physical means.

Front

What is a compound?

Back

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

Front

Can mixtures be homogeneous or heterogeneous?

Back

Yes, mixtures can be classified as homogeneous (uniform composition) or heterogeneous (distinct, separate components).

Front

What is an example of a homogeneous mixture?

Back

An example of a homogeneous mixture is saltwater.