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Ch.6 Holt

Chemical Reactions

TermDefinition
reactant a substance or molecule that participates in a chemical reaction.
product a substance that forms in a chemical reaction.
chemical energy the energy released when a chemical compound reacts to produce new compounds
exothermic reaction a chemical reaction in which heat is released to the surroundings
endothermic reaction a chemical reaction that requires heat
synthesis reaction reaction in which two or more substances combine to form a new compound.
decomposition reaction a reaction in which a single compound breaks down to form two or more simpler substances.
electrolysis the process in which an electric current is used to produce a chemical reaction, such as the decomposition of water.
combustion reaction the oxidation reaction of an organic compound in which heat is released.
single displacement reaction a reaction in which one element or radical takes the place of another element or radical in a compound.
double displacement reaction a reaction in which a gas, a solid participate, or a molecular compound forms from the apparent exchange of atoms or ions between two compounds
oxidation reduction reaction any chemical change in which one species is oxidized (loses electrons)and another species is reduced (gains electrons) also called redox reaction.
radical an organic group that has one or more electrons available for bonding
chemical reaction a representation of chemical reaction that uses symbols to show the relationship between the reactants and products.
mole ratio the relative number of moles of the substances required to produce a given amount of product in a chemical reaction.
catalyst a substance that changes the rate of a chemical reaction without being consumed or changed significantly
enzyme a type of protein that speeds up metabolic reactions in plants and animals without being permanently changed or destroyed.
substrate a part substance or element that lies beneath and supports another part, substance or element; the reactant in reactions catalyzed by enzymes
chemical equilibrium a state of a balance in which a rate of a forward reaction equals the rate of the reverse reaction and the concentrations of products and reactants remain unchanged.
Created by: haasem