tri 2 finals review
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chemical reaction
the process that leads to the transformation of 1 set of chemical substance into another
chemical equation
symbolic representation of a chemical reaction
coefficient
in 2H2O the two in the beginning is the coefficient
double replacement
ab+cd yields ad+cb
precipitate
a solid that forms from a solution during a chemical reaction
solution
A homogenous mixture of two or more substances
solute
Substance you dissolve into liquid
solvent
The stuff that does the dissolving. Most likely water.
reactant
the materials they have at the beginning
synthesis
a+b yields ab
combustion
any carbon compound+oxygen yields carbon dioxide + water
endothermic
a reaction in which energy is absorbed in the form of heat
product
the thing you get when the reaction is complete
decomposition
ab yields a+b
concentration
amount of a particular substance in the given amount of another substance
oxothermic
a chemical or physical reaction that releases in the form of heat
conservation of mass
mass can’t be created or destroyed
single replacement
a+bc yields ac+b
catalyst
a substance that speeds up a chemical reaction
give five observations of a chemical reaction
color change, temp change, light, texture change, gas emitted
describe 4 ways to increase a reaction rate
higher particle concentration, bigger s.a., agitation add catalyst
describe 4 ways to decrease a reaction rate
lower particle concentration, smaller s.a., don’t agitate, don’t add catalyst
draw an energy diagram of an endothermic reaction
a
draw an energy diagram of an exothermic reaction
a