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Ch.14

Chemical Reactions 8th grade

WordDefinition
chemical reaction process by which one or more substance change to produce one or more different substances
precipitate solid that is produced as a result of a chemical reaction in solution
chemical formula combination of chemical symbols and numbers to represent a substance
chemical equation representation of a chemical reaction that uses symbols to show the relationship between reactants and products
reactant substance or molecule that participates in a chemical reaction
product substance that forms in a chemical reaction
law of consevation of mass law that states that mass cannot be created or destroyed in ordinary chemical and physical changes
synthesie reaction reaction in which two or more substance combine to from a new compound
decomposition reaction reaction in which a single compound breaks down to form two or more simpler substances
single-displacement reaction reactioninwhich one element or radical takes the place of another element or radical in a compound
double-displacement reaction reaction inwhich a gas, a solid precipitate, or molecular compund forms from the exchange of ions between two compounds
exothermic reaction chemical reaction in which heat is released to the surroundings
endothermic reaction chemical reaction that requires heat
law ofconsevation of energy law thats states that energy can't be created or destoryed but can be changed from one form to another
activation energy minimum anount of energy required to start a chemical reaction
inhibitor substance that slows down or stops a chemical reaction
catalyst substance that changes the rate of a chemical reaction without being used up or changed very much
Created by: nicki_em
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