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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

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