746. Using the values of Ka and Kb of acids and bases, PR of sparingly soluble electrolytes, Knest of complex ions, compose molecular and ionic equations of reactions occurring in aqueous solutions between substances, and explain the direction of the reaction in accordance with the rules of Bertholle-Mikhailenko:
746. Cr(OH)2 and KOH(ex), K2SiO3 and HCl, MgCO3 and H2SO4

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