Elements, Compounds, Mixtures

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What is a mixture?

Back

A mixture is a combination of two or more substances where each substance retains its own properties.

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What is an element?

Back

An element is a pure substance that contains only one kind of atom.

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What is a compound?

Back

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

Front

How can you identify a mixture?

Back

A mixture can be identified if it contains more than one kind of molecule or substance.

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What is a homogeneous mixture?

Back

A homogeneous mixture is a mixture that has a uniform composition throughout.

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What is a heterogeneous mixture?

Back

A heterogeneous mixture is a mixture that has a non-uniform composition, where the different components can be seen.

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Can a mixture be separated by physical means?

Back

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

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What is an example of an element?

Back

An example of an element is oxygen (O), which consists of only oxygen atoms.

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What is an example of a compound?

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An example of a compound is water (H2O), which consists of hydrogen and oxygen atoms chemically bonded.

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What is an example of a homogeneous mixture?

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An example of a homogeneous mixture is saltwater, where the salt is evenly dissolved in water.