Element, Compound, Mixture Review

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What are pure substances?

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Pure substances are materials that are made up of only one type of particle. They can be either elements or compounds.

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What is an element?

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An element is a substance that consists of only one type of atom and cannot be broken down into simpler substances.

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What is a compound?

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A compound is a substance formed when two or more different types of atoms bond together chemically.

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What is a mixture?

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

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Can elements be broken down into simpler substances?

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No, elements cannot be broken down into simpler substances.

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Can compounds be broken down into simpler substances?

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Yes, compounds can be broken down into their constituent elements through chemical reactions.

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What is an example of an element?

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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.

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What is an example of a mixture?

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An example of a mixture is air, which contains various gases like nitrogen, oxygen, and carbon dioxide.

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How can mixtures be separated?

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Mixtures can be separated by physical methods such as filtration, distillation, or evaporation.