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Elements, Compounds and Mixtures
Elements, Compounds and Mixtures
14
Physics
8th Grade
11/01/2012

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Cards

Term
element
Definition

 

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a pure substance that cannot be separated into simpler substances by physical or chemical means

Term
compound
Definition

 

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a pure substance composed of two or more elements that are chemically combined

Term
mixture
Definition

 

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a combination of two or more substances that are not chemically combined

Term
solution
Definition

 

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a homogeneous mixture that appears to be a single substance but is composed of particles of two or more substances that are distributed evenly amongst each others

Term
dissolving
Definition

 

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the process in which particles of substances separate and spread evenly throughout a mixture

Term
solute
Definition

 

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the substance that is dissolved

Term
solvent
Definition

 

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the substance in which the solute is dissolved

(or the substance with the greater volume)

Term
alloy
Definition

 

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a solid in solid solution (e.g. brass is an alloy of zinc in copper)

Term
concentration
Definition

 

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a measure of the amount of solute dissolved in a solvent

Term
saturated
Definition

 

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a solution that contains all the solute it can hold at a given temperature

Term
unsaturated
Definition

 

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a solution that contains less solute than it can hold at a given temperature

Term
solubility
Definition

 

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the amount of solute needed to make a saturated solution using a given amount of solvent at a certain temperature

Term
suspension
Definition

 

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a mixture in which particles of a material are dispersed throughout a liquid or gas but are large enough that they settle out (heterogeneous mixture)

Term
colloid
Definition

 

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a mixture in which the particles are dispersed throughout but are not heavy enough to settle out

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