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Chapter 14 Chem.

QuestionAnswer
Chemical Reaction The process by which one or more substances change to produce one or more different substances
Precipitate A solid that is produced as a result of a chemical reaction in solution
Chemical Formula A combination of chemical symbols and numbers to represent a substance
Chemical equation uses chemical symbols and formulas as a shortcut to describe a chemical reaction
Reactant a substance or molecule that participates in a chemical reaction
Product the substance that forms in a chemical reaction
Law of conservation of mass the law that states that mass cannot be created or destroyed in ordinary chemical and physical changes
Synthesis reaction is a reaction in which two or more substances combine to form one new compound
Decomposition reaction is a reaction in which a single compound breaks down to form two or more simpler substances
single-displacement reaction an element replaces another element that is a part of a compound
double-displacement reaction is a reaction in which ions from two compounds exchange places
exothermic reaction a chemical reaction in which hear is released to the surroundings
enothermic reaction a chemical reaction that requires heat
law of conservation of energy the law that states that energy cannot be created or destroyed but can be changed from one form to another
activation energy the minimum amount of energy required to start a chemical reaction
inhibitor a substance that slows down or stops a chemical reaction
catalyst is a substance that speeds up a reaction without being permanently changed
Created by: ilovelucy21
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