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Chemical Equations & Reactions
Chapter 8 Key Terms
14
Chemistry
Not Applicable
03/30/2004

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Term
chemical equation
Definition
a representation with symbols and formulas, of the identities and relative amounts of the reactants and products in a chemical reaction
Term
precipitate
Definition
a solid that is produced as a result of a chemical reaction in solution and that separates from the solution
Term
coefficient
Definition
a small whole numberthat appears in front of a formula in a chemical equation
Term
word equation
Definition
an equation in which the reactants and products in a chemical reaction are represented by words
Term
formula equation
Definition
a representation of the reactants and products of a chemical reatction by their symbols or formulas
Term
reversible reaction
Definition
a chemical reaction in which the products re-form the original reactants
Term
combustion reaction
Definition
a reaction in which a substances combines with oxygen, releasing a large amount of energy in the form of light and heat
Term
composition reaction
Definition
a reaction in which two or more substances combine to form a new compound
Term
decomposition reaction
Definition
a reaction in which a single compound produces two or more simpler substances
Term
displacement reaction
Definition
a reaction in which one element replaces a similar element in a compound
Term
double-replacement reaction
Definition
a reaction in which the ions of two compounds exchange plaves in an aqueous solution to form two new compounds
Term
electrolysis
Definition
the process in which an electric current is used to produce an oxidation-reduction reaction also the decomposition of a substance by an electric current
Term
single-replacement reaction
Definition
a reaction in which one element replaces a similar element in a compound
Term
activity series
Definition
a list of elements organized according to the ease with which the elements undergo certain chemical reactions
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