S8P1 a. element, compound, mixture

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What is an element?

Back

An element is a pure substance that cannot be broken down into simpler substances by chemical means. It consists of only one type of atom.

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What is a compound?

Back

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

Tags

NGSS.MS-PS1-1

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 homogeneous mixture?

Back

A homogeneous mixture is a mixture that has a uniform composition throughout, meaning the individual components are not distinguishable.

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What is a heterogeneous mixture?

Back

A heterogeneous mixture is a mixture where the individual components can be seen and are not uniformly distributed.

Front

Give an example of a homogeneous mixture.

Back

Air is an example of a homogeneous mixture, as it has a uniform composition.

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Give an example of a heterogeneous mixture.

Back

Salad is an example of a heterogeneous mixture, as the individual ingredients can be seen and separated.

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What is the difference between a compound and a mixture?

Back

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

Front

What is the chemical symbol for copper?

Back

The chemical symbol for copper is Cu.

Front

What is the classification of water (H2O)?

Back

Water (H2O) is classified as a compound.

Tags

NGSS.MS-PS1-1