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29 Cards in this Set
- Front
- Back
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matter
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anything that has mass and occupies space (p.343)
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elements
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the basic building blocks of matter; cannot be separated into parts by chemical means
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atom
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the smallest particle of an element that has all the properties of the element
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physical property
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scientists use physical properties, such as density, to identify substances
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solid
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a state of matter in which material has a definite volume and shape
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liquid
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a state of matter with a definite volume but without definite shape
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gas
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a state of matter that does not have a specific shape and particles are far apart
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particles
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a very small piece of matter
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volume
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the space that an object takes up as expressed in a cubic unit!!!!!!
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melting point
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the point where things melt
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freezing point
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the point where things freeze
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boiling point
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when water boils
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characteristic
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property or attribute that shows differences
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mixture
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two or more substances that are mixed together but cannot chemically combine
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solution
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a mixture in which a substance breaks up into its most basic particles and spreads evenly throughout another substance
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sifting
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separating things by size
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flotation
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something will float when it is lighter (less dense) than a liquid
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density
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the weight or mass per unit volume
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precipitate
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solute that comes out of a solution due to a change in solubility
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chromatography
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a process of separating substances by dissolving them in special liquids
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solute
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the substance that dissolves in a solution
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solvent
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the substance in which the solute is being dissolved
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concentrate
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a measure of the amount of solute compared to the amount of solvent
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dilute
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a solution that is far from being saturated
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rate of solution
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how quickly a solute dissolves
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solubility
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the property is the maximum amount of solute that can be dissolved in a solvent
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compound
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is a type of matter made of a combination of elements
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pollution
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the release of harmful things into the environment
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chemical reaction
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one or more substances change into other substances with different chemicals
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