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anything that has mass and volume |
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made up of only one type of atom or molecule, fixed composition and distinct properties, cannot be separated by physical means |
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substance that cannot be decomposed into simpler substances |
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substance containing more than one element, chemically combined always contains definite or constant proportions of the elements by mass |
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Matter that is made of two or more substances in which each substance retains its own chemical identity. |
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mixture in which the substances are uniformly distributed. aka SOLUTION |
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A mixture in which the substances are not uniformly distributed |
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heterogeneous mixture of a solvent-like substance with particles that slowly settle out. particle size are large and more dense when compared to water molecules |
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heterogeneous mixture consisting of particles intermediate in size between those in solutions and those in suspensions |
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liquid that passes through filter paper |
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bits of solid left of filter paper |
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used to separate suspensions. only works if particles are large enough to get "stuck" in filter paper |
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process used to separate liquids and solids when particles are too small and pass through filter paper. the larger particles are pulled to the outside |
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pouring off the top layer . immiscible liquids only |
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used to obtain the solute from the solution |
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used to separate miscible liquids. heat the mixture. used when you want both things or what has lowest boiling point . goes from liquid- to water vapor (steam) into liquid (from cold around tube) |
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A technique in which molecules in a mobile phase are separated because of their different affinities for a stationary phase |
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