Glossary

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anion: A negatively charged ionAn atom or covalently bonded set of atoms that carries an overall net charge.. An ion that is attracted toward the anodeThe electrode in an electrochemical cell where oxidation occurs. The positively charged electrode in a vacuum tube. in an electrolytic cellAn electrochemical cell used to drive a reaction that would otherwise be non-spontaneous (reactant-favored)..

Term of the Day

The equilibrium constant expressionThe ratio of the concentrations of products in a balanced chemical equation, each concentration raised to the power of its coefficient, divided by the concentrations of reactants, each raised to the power of its coefficient; at equilibrium this ratio has the value of the equilibrium constant. for the dissolution of an electrolyteA substance that dissolves to produce a solution containing ions, which cause the solution to conduct electricity.; the reactantA substance consumed by a chemical reaction. is a solidA state of matter having a specific shape and volume and in which the particles do not readily change their relative positions. and its concentrationA measure of the ratio of the quantity of a substance to the quantity of solvent, solution, or ore. Also, the process of making something more concentrated. does not appear in the expression, which is a productA substance produced by a chemical reaction. of the concentrations of the products (raised the to appropriate powers).