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2021 CH 2 Intro

QuestionAnswer
solid to gas sublimation
gas to solid deposition
study of matter and its changes chemistry
solid to liquid melting
liquid to solid freezing
coldest temperature where all molecules stop moving absolute zero
SI unit for temperature Kelvin
liquid to gas evaporation (boiling)
gas to liquid condensation
amount of space object takes up volume
amount of matter object has mass
has definite volume and definite shape solid
has definite volume and indefinite shape liquid
most common state of matter in universe (is ionized) plasma
has indefinite volume and indefinite shape gas
mixtures that looks the same throughout homogeneous
mixture that looks different heterogeneous
another name for a homogeneous mixture solution
that has a uniform and definite composition ; only elements and compounds substance
a physical blend of 2 or more things ; does NOT have a fixed ratio mixture
a chemical blend of 2 or more substances ; has a FIXED ratio compound
starting material in a chemical reaction reactants
gets made in a chemical reaction products
states that mass is not created or destroyed in a closed system law of conservation of mass
speeds up a chemical reaction catalyst
shows that reaction is reversible ; products formed at same rate as reactants equilibrium
energy needed to start a chemical reaction activation energy
heterogeneous mixture with microscopic particles colloid
heterogeneous mixture with macroscopic (visible) particles suspension
solution holding exactly the max amount of solute saturated solution
solution holding more than the theoretical max amount of solute supersaturated solution
solution holding less than the max amount of solute unsaturated solution
Created by: cadetjt
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