Which of the following statements are true?
(a) For an insoluble metallic salt, Ksp is always less than 1.
(b) More PbCl2 can be dissolved at 100°C than at 25°C. One can conclude that dissolving PbCl2 is an exothermic process.
(c) When strips of copper metal are added to a saturated solution of Cu(OH)2, a precipitate of Cu(OH)2 can be expected to form because of the common ion effect.
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