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study of matter and changes it undergoes |
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anything that has mass or occupies space |
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a substance which is composed of two elements chemically bound. |
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definite compositions and unchanging properties. |
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the most basic form of matter that exists under ordinary conditions. |
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observed or measured as long as stays as original substance |
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solids, liquids, and gasses |
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definite shape and volume |
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definite volume and not a definite shape |
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not definite shape and volume |
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compound or element changed from solid to liquid |
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compound or element that changed from liquid to solid |
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law of conservation of energy |
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cannot be created or destroyed, only transformed from one form to the next |
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law of conservation of mass |
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matter is neither created or destroyed in a chemical reaction |
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substance is transformed into another substance |
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tendency of pure substances to undergo chemical changes |
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one physical state (solid, liquid, or gas) |
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energy resulting from motion |
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2 phases. nonuniform mixture with definite boundaries between the phases... oil and water. |
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same throughout, one phase. |
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homegenous mixtures with one liquid phase |
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