Compounds, Molecules & Mixtures

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matter

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Anything that has mass and takes up space

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atom

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The basic unit of a chemical element; a building block of matter

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substance

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Matter with composition that always stays the same.

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element

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A substance that consists of just one type of atom

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compound

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A type of substance containing atoms of two or more different elements chemically bonded together

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mixture

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A combination of two or more substances that are not chemically combined; matter that can vary in composition

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heterogeneous mixture

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A mixture in which the individual substances are not evenly mixed

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homogeneous mixture

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A mixture in which the individual substances are evenly mixed

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dissolve

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To form a solution by mixing evenly

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physical property

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A characteristic of matter that can be observed without changing it into another substance; without changing the identity of the matter