Chemistry vocab
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each of the black spaces below before clicking
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Matter | the substance or substances of which any physical object consists or is composed.
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Pure Substance | A sample of matter, either an element or a compound, that consists of only one component with definite physical and chemical properties and a definite composition.
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Element | one of a class of substances that cannot be separated into simpler substances by chemical means.
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Compound | a pure substance composed of two or more elements whose composition is constant.
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Mixture | an aggregate of two or more substances that are not chemically united and that exist in no fixed proportion to each other.
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Homogeneous Solution | A solution composed of parts or elements that are all of the same kind.
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Heterogeneous Solution | A solution composed of parts of different kinds.
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Distillation | the volatilization or evaporation and subsequent condensation of a liquid.
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Physical Changes | A change pertaining to the properties of matter and energy other than those peculiar to living matter.
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Physical Properties | can be observed or measured without changing the composition of matter.
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Chemical Changes | A change that effects the chemical composition of a substance.
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Chemical Properties | Can be observed or measured by changing the composition of matter.
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Law of Conservation of Matter | a fundamental principle of classical physics that matter cannot be created or destroyed in an isolated system.
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