Elements, Compounds, Mixtures

Front

What is a pure substance?

Back

A pure substance is an element or a compound.

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What is an element?

Back

An element is a substance made of only one type of atom.

Front

What is 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

How can you classify a substance made of two or more elements?

Back

It can be classified as a compound if the elements are chemically bonded, or as a mixture if they are not.

Front

What does a mixture of elements consist of?

Back

A mixture of elements consists of two or more different elements that are physically combined.

Front

What does a mixture of compounds consist of?

Back

A mixture of compounds consists of two or more different compounds that are physically combined.

Front

What is the difference between a compound and a mixture?

Back

A compound is a substance formed from two or more elements that are chemically bonded, while a mixture is a combination of substances that are not chemically bonded.

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Can a mixture be separated into its components?

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Yes, a mixture can be separated into its components by physical means.

Front

What is an example of an element?

Back

An example of an element is oxygen (O) or gold (Au).