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[اسيل000]

Classification of Matter

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Matter - anything that occupies space and has mass

• all matter is made up of chemicals

MatterMixtureHomogeneousHeterogeneousSubstanceElem entsCompounds
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Mixture: combination of 2 or more substances in which the substances retain distinct identities (air, milk, cement, tea, coffee)

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Homogeneous mixture: same composition throughout (sugar in water, tea)

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Heterogeneous mixture: non-uniform composition (sand + iron filings)

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Substance: form of matter that has a definite or constant composition and distinct properties (H2O, NH3, sugar, gold...)

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Elements: substance that cannot be separated into simpler elements by chemical means

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Compounds: substance composed of atoms of 2 or more elements chemically united in fixed proportions