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17 terms

chem exam part 10

STUDY
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chemical reaction
the process by which one or more substances change to produce one or more different substances
reactants
the starting substances
products
substances formed during the reaction
chemical equation
a statement that uses chemical formulas to show the identities and relative amounts of the substances involved in the chemical reactions
coefficient
the number written in front of a reactant or product
synthesis reaction
a reaction in which two or more substances combine to form a single compound
(A+B→AB)
combustion reaction
oxygen combines with a substance and releases energy in the form of heat and light
decomposition reaction
one element breaks down into two new elements
(AB→A+B)
single-replacement reaction
the atoms of one element replace the atoms of another element in a compound
(A+BX→AX+B)
double-replacement reaction
exchange of ions between two compounds
(AX+BY→AY+BX)
precipitate
solid produced during a chemical reaction in a solution
solutes
substances dissolved in a liquid
solvent
substance in which a solute is dissolved to form a solution
aqueous solution
solution in which water is the solvent
complete ionic equation
an ionic equation that shows all the particles in a solution as they realistically exist
spectator ions
ions that are present in a solution in which a reaction is taking place but that do not participate in the reaction
net ionic equations
formulas that include only the particles that participate in reactions