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5 factors that influence the rate of a chemical reaction
-temp
-conc.
-catalyst
-nature
-surface area
mass can not be created nor destroyed
Law of Conservation of Mass
a solid that forms during a rxn in a solution
precipitate
synthesis reaction
where 1 product is formed
single-displacement
where 1 element displaces another
double-displacement
where 2 elements displace each other
the energy it takes for a rxn to take place
activation energy
the reactant that runs out first
limiting reactant
the efficiency of a rxn
percentage yield
the amount of product calculated in a stoich problem
theoretical yield
substance whose water solution is a good conductor of electricity (with ions)
electrolyte
when gas escapes from a liquid
effervescence
properties that are affected by the concentration of the solute
colligative properties
can act as an acid or a base
amphoteric species
the avg kinetic energy of something
temperature
flow of energy from hot to cold
heat
the amount of heat required to raise 1 gram of material 1°C
specific heat
the device used to measure specific heat
calorimeter
the amount of energy released or absorbed by a system at constant pressure
enthalpy change
main observasions for a chemical rxn
-formation of a precipitate
-production of gas
-production of heat/light
2 things required for a collision
-right amount of energy
-correct orientation
what is required of all 4 types of stoiciometry problems?
mole ratio
units of molar mass?
g/mol
what happens when limiting reactant runs out?
rxn stops
scientist: = volumes of gases contain same # molecules
Avogadro
example of hetero & homo mixture
hetero- whole wheat bread
homo- sugar water solution
contains particles that are in a dispersed phase & don't settle out
colloid
tyndall effect is used to distinguish b/w...
colloids & solutions
what factors increase the solubility of a solid in a liquid
-temp
-surface area
-stirring
units of energy
kJ
AX+BY---> AY+BX is the general form for
double displacement
two or more substances combine to form one new compound in
synthesis
the ratio of the actual yield to the theoretical yeild
% yield
measures atmospheric pressure
barometer
total pressure of a mixture of gases is the sum of their partial pressures
Dalton's Law
if a gas with an odor is released in a room, it's odor detected from across the room is b/c of
diffusion
EX: air slowly escaping from a pinhole in a tire
effusion
a homogeneous mixture in a single phase
solution
metal solution
alloy
solution at equilibrium: the rate of dissolution will _____ the rate of crystallization
EQUAL
substance that ionized nearly completely in aqueous solution and produces hydronium ions is
a strong acid
amount of energy absorbed or lost by a system as energy in the form of heat during a process at constant pressure
enthalpy change
energy transferred b/w samples due to a diff in temp
heat
the majority of spontaneous reactions in nature are
exothermic
Author
seniorcompany18
ID
157280
Card Set
Chem Review Packet Cards
Description
Final 1!
Updated
2012-06-05T02:01:02Z
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