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14 Cards in this Set
- Front
- Back
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Property
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any characteristic that allows one to recognize a particular type of matter and distinguish it from other types
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States of matter
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solid, liquid, or gas
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Gas
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matter that has no fixed shape or volume; it conforms to the volume and shape of its container
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Solid
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matter that has a fixed shape and volume; cannot be compressed
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Liquid
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matter that has a fixed volume but no fixed shape; it conforms shape of its container and cannot be compressed
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Pure substance
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matter that has distinct properties and a composition that does not change from sample to sample
Ex: gold (element), water (compound) Not ex: Wood |
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Compound
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a substance composed of two or more different elements; has, collectively, unique properties
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Mixture
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combinations of two or more substances in which each substance retains its own chemical identity
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Law of definite proportions (Law of constant composition)
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states that the elemental composition of a pure substance is always the same, regardless of its source
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What are the substances that make up a mixture called?
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components
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Homogeneous mixture (solution)
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a mixture that is uniform in composition throughout
Ex: salt water, air Not ex: rock |
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Heterogeneous mixture
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a mixture that is not uniform in composition throughout
Ex: wood, rock, pizza |
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Physical properties
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properties that can be measured without changing the composition of a substance
Ex: freezing point, color, smell |
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Chemical property
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properties that describe a substance's composition and its reactivity; how the substance reacts or changes into other substances
Ex: flammability, oxidation |
