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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