Elements Compounds and Elements

Front

What is a mixture?

Back

A combination of substances that are not chemically combined.

Front

What is a compound?

Back

A substance composed of two or more elements that are chemically combined.

Front

What is an element?

Back

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

Front

What is a pure substance?

Back

A material that has a constant composition and consistent properties throughout.

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What is an example of a pure substance?

Back

Gold is an example of a pure substance.

Front

What is air classified as?

Back

Air is classified as a mixture because it contains different gases that are not chemically combined.

Front

What is the difference between a mixture and a compound?

Back

A mixture consists of two or more substances that are not chemically combined, while a compound consists of two or more elements that are chemically combined.

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Can a mixture be separated by physical means?

Back

Yes, mixtures can be separated by physical means such as filtration or distillation.

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What is a solution?

Back

A homogeneous mixture where one substance is dissolved in another.

Front

What is an example of a mixture?

Back

Salad is an example of a mixture because it contains various ingredients that are not chemically combined.