Ca(OH)2(s) ! Ca2+ (aq) + 2OH- (aq) Adding HCl will result in the H+ from the HCl reacting with OH- , which will decrease [OH- ]. This will shift the solubility equilibrium to the right, which will increase [Ca2+]. why not Ca will react with Cl to make decrease of Ca View Less >>
?Ca(OH)2(s) ———> Ca2+ (aq) + 2 OH- (aq) Well the reason behind formation of H2O ( water forms) as a reaction of H+ and OH- is preferred over formation of CaCl2 , due to the reaction of Ca2+ and Cl- Get solution

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