Crystallization

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Crystallization
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A separation technique that results in the
formation of pure solid particles
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Pure Substance
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Matter that has a uniform and unchanging
composition
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Chromatography
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A technique that separates that components of a
mixture on that basis of the tendency of each to
travel or be drawn across the surface of another
material
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Reactivity
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The ability of a substance to combine with or
change into one of more other substances
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List of Chemical Properties
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Reactivity, corrosiveness, radioactivity
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List of Chemical Changes
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Fermenting sugar, toasting bread, rusting
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List of Physical Changes
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Flattening, cutting, tearing, melting, freezing
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Description of Chemical Change
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Forms green copper carbonate compound when in
contact with moist air
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Heterogeneous Mixture
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A combination of two or more pure substances in
which each pure substance maintains its
individual chemical properties
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Chemical Reaction
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A process which involves one or more substances
changing into new substances
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Extensive Properties
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Properties dependent on the amount of the
substance present
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Intensive Properties
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Properties independent on the amount of the
substance present
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Compound
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A pure substance that cannot be separated by
physical means
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Filtration
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A technique that uses a porous barrier to
separate a solid from a liquid
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Distillation
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A separation technique that is based on
differences in the boiling points of the
substance involved
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List of Physical Properties
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Liquid
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Indefinite volume or shape
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Physical Change
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Changes which alter a substance but not is
composition
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Heterogeneous Material
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A mixture which is not uniform in composition
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Homogeneous Material
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A mixture which is uniform in composition
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Physical Property
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A characteristic which can be observed or
measured without changing the substances
composition
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Solutions
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Mixtures of solids, liquids or gases
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Description of Chemical Change
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Forms deep blue solution when in contact with
ammonia
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Compound
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A combination of two or more elements that are
combined chemically
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Solid
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Definite Shape and Volume
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Liquid
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Definite volume and indefinite shape
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Endothermic Reaction
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A reaction where energy is released
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Endothermic Reaction
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A reaction where energy is absorbed