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Details Title: Chemical Equilibrium Description: Chapter 18 Key Terms Total Flash Cards: 9 Created: 03/22/2004 12:06:11	To study from this set of flash cards, or to create your own your own study flash cards, register HERE. If you are already a registered user, CLICK HERE.
Cards Term reversible reaction Definition a chemical reaction in which the products can react to re-form the reactants. Term chemical equilibrium Definition a state of balance in which the rate of a forward reaction equals the rate of its reverse reaction and the concentrations of its products and reactants remain unchanged. Term equilibrium constant Definition the ratio of the mathematical product of the concentrations of substances formed at equilibrium to the mathematical product of the concentrations of the reacting substances. Each concentration is raised to a power equal to the coefficient of that substance in the chemical equation. Term chemical-equilibrium expression Definition the equation for the equilibrium constant, k. Term common-ion effect Definition the phenomenon in which the addition of an ion common to two solutes brings about precipitation or reduced ionization. Term acid-ionization constant Definition the term ka. the a is supposed to be a subscript of k. Term buffered solution Definition a solution that can resist changes in ph. Term hydrolysis Definition a reaction between water molecules and ions of a dissolved salt. Term solubility-product constant Definition the product of the molar concentrations of ions of a substance in a saturated solution, each raised to the power that is the coefficient of that ion in the chemical equation.