For the generic equilibrium ha(aq) ⇌ h+(aq) + a−(aq), which of these statements is true? for the generic equilibrium , which of these statements is true? the equilibrium constant for this reaction changes as the ph changes. if you add the soluble salt ka to a solution of ha that is at equilibrium, the concentration of a− would decrease. if you add the soluble salt ka to a solution of ha that is at equilibrium, the ph would increase. if you add the soluble salt ka to a solution of ha that is at equilibrium, the concentration of ha would decrease.

One way in which the useful metal copper is produced is by dissolving the mineral azurite, which contains copper(ii) carbonate, in concentrated sulfuric acid. the sulfuric acid reacts with the copper(ii) carbonate to produce a blue solution of copper(ii) sulfate. scrap iron is then added to this solution, and pure copper metal precipitates out because of the following chemical reaction: (s) (aq) (s) (aq) suppose an industrial quality-control chemist analyzes a sample from a copper processing plant in the following way. he adds powdered iron to a copper(ii) sulfate sample from the plant until no more copper will precipitate. he then washes, dries, and weighs the precipitate, and finds that it has a mass of .