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chemistry chapter 6

STUDY
PLAY
energy
ability to work or cause change
potential energy
energy of position or energy that is being stored
kinetic energy
energy of motion or energy that is being stored
endothermic reaction
a chemical reaction where heat is added
exothermic reaction
a chemical reaction where heat is produced
thermal equation
chemical equation that shows the heat involved in the reaction
heat of reaction
amount of heat involved in a chemical reaction
heat content
amount of energy in a system
delta h
symbol for change in heat content
stoichiometry
the quantitative relationships between substances in a chemical reaction based on mole ratios
mole ratio
the quantitative relationships between substances in a chemical equation based on mole ratios
limiting reactant
reactant that is used up in a reaction and determines the amount of product
excess reactant
reactant that is not used up in a reaction and does not determine the amount of product