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Matter, etc
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13
Chemistry
10th Grade
06/12/2010

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Term
matter
Definition
has mass, takes up space
Term
pure substance
Definition
matter with constant composition and properties
Term
mixture
Definition
physical combo. of 2 or more pure substances with variable composition
Term
element
Definition
pure substance (can't be broken down further by ordinary, chemical means)
Term
compound
Definition
chemical combination of 2/more elements (whole # ratio)
Term
homogeneous
Definition
same properties throughout solution
Term
heterogeneous
Definition
different properties throughout solution
Term
physical change
Definition
change in physical properties; no new substance formation
Term
physical properties
Definition
those which can be observed without forming a new substance
Term
chemical change
Definition
results in formation of new substance with new chemical/physical properties
Term
chemical properties
Definition
observed during the formation of a new substance
Term
extensive properties
Definition
(physical) depend on sample size
Term
intensive properties
Definition
(chemical) not depend on sample size, can be used to identify a substance
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