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chemical reactions
process by which substances change into different substances through the breaking and forming of chemical bonds
Reactants
the substances changed during a chemical reaction
bond energy
the amount of energy that will break a bond between two atoms
equilibrium
condition in which reactants and products of a chemical reaction are formed at the same rate
activation energy
the amount of energy that needs to be absorbed for a chemical reactants to start
exothermic
chemical reaction releases more energy than it absorbs
endothermic
chemical reactants absorbs more energy than it releases
catalyst
a substance that decreases that activation energy needed to start a chemical reaction and as a result also increases the rate of the chemical reaction
enzymes
protein that catalyzes chemical reaction for organisms
substrates
the specific reactants that an enzyme acts on
products
the substances made by a chemical reaction
Note 
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