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CHEM CH 2 Intro

QuestionAnswer
temperature where all molecules stop moving [coldest temp. possible] absolute zero
SOM with definite shape & definite volume solid
SOM with definite volume but indefinite shape liquid
SOM with indefinite volume & indefinite shape gas
gaseous state of anything that is normally a solid or liquid at room temperature vapor
most common SOM in the universe plasma
chemical blend of 2 or more different elements in a fixed ratio compound
physical blend of 2 or more things in a varying ratio mixture
aka homogeneous mixture solution
part of solution that is mixed in [lesser amount] solute
part of solution that that does the mixing [higher amount] solvent
mixture that looks the same throughout homogeneous mixture
mixture that looks different heterogeneous mixture
separation by different boiling points distillation
separation by different sizes filtration
going from solid to gas sublimation
going from liquid to solid freezing
going from solid to liquid melting
going from liquid to gas boiling (evaporation)
going from gas to liquid condensation
starting material in a chemical equation reactants
speeds up a chemical reaction by lowering the activation energy catalyst
gets made in a chemical reaction products
means "yields" ; shows the direction of a chemical reaction arrow(s)
means the reaction is reversible ; products and reactants form at the same rate equillibrium
states that mass is not created or destroyed in physical change or chemical reaction law of conservation of mass
gas is formed, precipitate is formed, color change, temperature change, odor change clues of a chemical change
Created by: cadetjt
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