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CHEMISTRY VOCAB
WOOHOO
19
Science
9th Grade
02/26/2008

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Term
chemistry
Definition
the study of matter and of the transformation it can undergo
Term
solid
Definition
phase of matter characterized by definite volume and shape
Term
liquid
Definition
phase of matter characterized by definite volume but no definite shape, takes on the shape of it's container
Term
gas
Definition
phase of matter in which molecules fill whatever space is available to them, taking neither definite shape nor definite volume.
Term
physical property
Definition
any physical characteristic of a substance, such as color, density, and hardness
Term
physical change
Definition
a change in which a substance changes its physical properties without changing its chemical identity
Term
chemical property
Definition
the tendency of a substance to change chemical identity
Term
chemical change
Definition
a change in which a substance changes its chemical identity during a chemical changeatomes are rearranged to give a new substance
Term
chemical reaction
Definition
synonymous to chemical change
Term
element
Definition
a fundamental material consisting of only one type of atom
Term
atomic symbol
Definition
an abbreviation for an element derived from the first one or two letters of the element's name
Term
elemental formula
Definition
a notation used to denote the composition of a compound.
Term
distillation
Definition
the process of recollecting a vaporized substance
Term
pure
Definition
the state of a material that consists of only a single element or compound
Term
impure
Definition
the state of material that consists of more than one element or comound. a chemical mixture is impure
Term
heterogeneous mixture
Definition
a mizture in which the components can be seen as indifidual substances
Term
homogeneous mixture
Definition
a mixture composed of components so finely mixed that the composition is all the same throught the mixture
Term
solution
Definition
a homogeneous mixture in which all the components oare of the same phase
Term
suspension
Definition
a homogeneous mixture in which different components are of different phases
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