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9Sci CH16

9th Science CH16 Chemical Reactions

TermDefinition
balanced chemical equation a chemical equation that has the same number of atoms of each element on both sides of the equation
catalyst a substance that speeds a chemical reaction without itself being permanently changed
chemical reaction a change in which one or more substances are converted to different substances (the reactants are changed into the product)
chlorofluorocarbon (CFC) a group of compounds whose decomposition releases chlorine atoms that destroy ozone molecules in the upper atmosphere; used, for example, in air conditioning systems
coefficient in a chemical equation, the number that represents the number of units of each substance taking part in a chemical reaction
decomposition reaction a chemical reaction in which a substance breaks down (decomposes) into two or more simpler substances
double-displacement reaction a chemical reaction in which two ionic compounds in solution react, forming a precipitate, gas, or water
endothermic reaction a chemical reaction in which energy is absorbed
exothermic reaction a chemical reaction in which energy is released
inhibitor a substance that slows or prohibits a chemical reaction
precipitate an insoluble compound formed during a double-displacement reaction
product in a chemical reaction, the substances produced by the reaction
reactant the starting substances in a chemical reaction
single-displacement reaction a chemical reaction in which one element replaces another element in a compound
synthesis reaction a chemical reaction in which two or more substances combine to form a different substance
Created by: djhockett5
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