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Chemistry Terms
All the terms
27
Other
Not Applicable
06/14/2005

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Term
Chemistry
Definition
study of matter and changes it undergoes
Term
Matter
Definition
anything that has mass or occupies space
Term
Compound
Definition
a substance which is composed of two elements chemically bound.
Term
Pure Substance
Definition
definite compositions and unchanging properties.
Term
Element
Definition
the most basic form of matter that exists under ordinary conditions.
Term
Physical Properties
Definition
observed or measured as long as stays as original substance
Term
Physical States
Definition
solids, liquids, and gasses
Term
Solids
Definition
definite shape and volume
Term
Liquids
Definition
definite volume and not a definite shape
Term
Gasses
Definition
not definite shape and volume
Term
melting point
Definition
compound or element changed from solid to liquid
Term
freezing point
Definition
compound or element that changed from liquid to solid
Term
boling point
Definition
when liquid evaporates
Term
condensation point
Definition
gas to liquid
Term
law of conservation of energy
Definition
cannot be created or destroyed, only transformed from one form to the next
Term
law of conservation of mass
Definition
matter is neither created or destroyed in a chemical reaction
Term
chemical change
Definition
substance is transformed into another substance
Term
chemical properties
Definition
tendency of pure substances to undergo chemical changes
Term
density
Definition
ratio of mass to volume
Term
phase
Definition
one physical state (solid, liquid, or gas)
Term
exothermic
Definition
release of heat
Term
endothermic
Definition
absorbtion of heat
Term
potential energy
Definition
energy available
Term
kinetic energy
Definition
energy resulting from motion
Term
heterogenous mixture
Definition
2 phases. nonuniform mixture with definite boundaries between the phases... oil and water.
Term
homogenous mixture
Definition
same throughout, one phase.
Term
soltuion
Definition
homegenous mixtures with one liquid phase
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