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23 Cards in this Set
- Front
- Back
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Matter
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anything that has mass and takes up space.
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Mass
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the amount of matter that an object contains.
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Substance
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Matter that has a uniform and definite composition.
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Physical property
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a quality or condition of a substance that can be observed or measured without changing the substance’s composition.
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Solid
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matter that has definite shape and volume.
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Liquid
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the form of a matter that flows, has a fixed volume, and takes the shape of its container.
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Gas
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a form of matter that takes both the shape and volume of its container.
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Vapor
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the gaseous state of a substance that is generally a liquid or solid at room temperature.
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Physical change
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a change in matter that doesn’t alter the chemical composition of the material.
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Mixture
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a physical blend of two or more substances.
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Heterogeneous Mixture
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a mixture not uniform in composition.
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Homogeneous Mixture
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a mixture with completely uniform composition. Also called a SOLUTION.
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solutions
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HOMOGENEOUS MIXTURE
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phase
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any part of a system with uniform composition and properties.
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distillation
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a method of separating components in tap water. Boil the water to produce a vapor which is then condensed again to a liquid.
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elements
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the simplest forms of matter that can exist under normal laboratory conditions.
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compounds
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substances that can be separated into simpler substances only by chemical means.
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chemical symbol
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one or two letter symbol representing an element.
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chemical reaction
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one or more substances change into new substances.
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reactants
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the starting substances in a chemical reaction.
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products
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the substances formed in a chemical reaction.
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chemical property
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the ability of a substance to undergo a chemical reaction and to form new substances.
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Law of Conservation of Mass
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states that in any physical change or chemical reaction, mass is neither created or destroyed; it is conserved.
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