P.S. ch 2 matter vocab

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atom

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the smallest component of an element having the chemical properties of the element; basic unit of matter

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elements

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A molecule composed of one kind of atom; cannot be broken into simpler units by chemical reactions.

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compounds

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Made up of atoms of two or more elements in fixed proportions

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mixtures

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2 or more components physically combined; atoms and molecules don't change as there is no chemical bonding. Can separate out the components.

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homogeneous mixture

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COMPOSED OF IDENTICAL PARTS; UNIFORM IN COMPOSITION

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heterogeneous mixture

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composed of unlike parts; different; diverse; not uniform in composition

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solution

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A homogeneous mixture of two or more substances

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suspension

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A mixture in which particles can be seen and easily separated by settling or filtration

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colloid

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A mixture that contains some particles that are intermediate in size between the small particles in a solution and the larger particles in a suspension. A tweener

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solute

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A substance that is dissolved in a solution.