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27 Cards in this Set
- Front
- Back
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chemical change
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a change that produces matter with a different composition than the original matter
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chemical property
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the ability of a substance to undergo a specific chemical change
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chemical reaction
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a change in which one or more reactants change into one or more products; characterized by the breaking of bonds in reactants and the formation of bonds in products
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chemical symbol
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a one- or two-letter representation of an element
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compound
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a substance that contains two or more chemicals combined in a fixed proportion
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distillation
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a process used to separate dissolved solids from a liquid, which is boiled to produce a vapor that is then condensed into a liquid
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element
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the simplest form of matter that has a unique set of properties; an element cannot be broken down into simpler substances by chemical means
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extensive property
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a property that depends on the amount of matter in a sample
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filtration
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a process that separates a solid from the liquid in a heterogenous mixture
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gas
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a form of matter that takes the shape and volume of its container; a gas has no definite shape or volume
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heterogeneous mixture
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a mixture that is not uniform in its compostiion; components are not evenly distributed throughout the mixture
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homogeneous mixture
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a mixture that is uniform in composition; components are evenly distributed and not easily distinguished
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law of conservation of mass
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in any physical change or chemical reaction, mass is conserved; mass canbe neither created nor destroyed
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liquid
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a form of matter that flows, has a fixed volume and an indefinite shape
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mass
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a measure of the amount of matter that an object contains; the SI base unit of mass is the kilogram
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mmixture
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a physical blend of two or more substance that are not chemically combined
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phase
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any part of a smaple with uniform composition and properties
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physical change
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a change during which some properties of a material change, but the composition of the material does not change
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physical property
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a quality of condition of a substance that can be observed and measured without changing the substance's composition
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precipitate
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a solid that forms and settles out of a liquid mixture
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product
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a substance produced in a chemical reaction
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reactant
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a substance present at the start of a reaction
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solid
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a form of matter that has a definite shape and volume
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solution
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a homogeneous mixture; consists of solutes dissolved into a solvent
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substance
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matter that has a uniform and definite composition; either an element of a compund; also called a pure substance
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vapor
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describes the gaseous state of a substance that is generally a liquid or solid at room temperature
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volume
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a measure of the space occupied by a sample of matter
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