CHM2045 Chapter 4: Chapter 4 Vocabulary
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Aqueous solution: a solution in which water is the dissolving medium. Solution: homogeneous mixture of two or more substances. Electrolyte: substance whose aqueous solutions contain ions. (ex: nacl) Non-electrolyte: a substance that does not form/contain ions. (ex: c12h22o11) Solvation: stabilizes the ions in a solution and prevent cations & anions from recombining. Strong electrolytes: solutes that exist in solution completely or nearly as ions. Weak electrolytes: solutes that exist in a solution that is mostly in the form of neutral molecules with a small fraction in the form of ions. Chemical equilibrium: when the relative numbers of each type of ion or molecule in the reaction are constant over time. Precipitate: insoluble solid formed by a reaction in solution. Exchange reactions/metathesis reactions: reactions in which cations and anions appear to exchange partners conform to the general equation. Molecular equation: an equation showing the complete chemical formulas of reactants and products.