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- What is the final product of the reaction?what are the major products?What type of reaction is involved in the following: CaC2O4 + KMnO4 (in the presence of H2SO4) _____________________________________ AsO4-3 + KI ( in the presence of CHCl3) _____________________________________ SO4-2 + Ba(C2H3O2)2 (in the presence of HCl) ______________________________________ AgSCN + FeCl3 ______________________________________