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17 Cards in this Set

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  • Back
Chemical reaction
a change in which one or more substances are converted into new substances
Reactant
the substances that react in a chemical reaction
Product
the new substances produced in a chemical reaction
Chemical equation
a way to describe a chemical reaction using chemical formulas and other symbols
Coefficient
represent the number of units of each substance taking part in a reaction
Balanced chemical equation
a chemical equation that has the same number of atoms of each element on both sides of the equation
Synthesis reaction
a reaction in which two or more substances combine to form another substance
Decomposition reaction
a reaction in which one substance breakes down, or decomposes, into two or more substances
Single-displacement reaction
when one element replaces another in a compound
Double-displacement reaction
the postive ion in one compound replaces the positive ion of the other to form two new compounds
Precipitate
an insoluble compound that comes out of solution during this type of reaction
Exergonic reaction
chemical reactions that release energy
Exothermic reaction
when the energy given off in a reaction is primarily in the form of heat
Endergonic
a chemical reaction that requires more energy to break bonds than is released when new ones are formed
Endothermic
when the energy needed to break the bonds is in the form of heat
Catalyst
a substance that speeds up a chemical reaction without being permanently changed itself
Inhibitor
a substance that slows down a chemical reaction or prevents it from occuring by combining with a reactant