##SO_3^(2-) + Cu^(2+)+ 2HO^(-) rarr SO_4^(2-) +Cu(s) + H_2O(l)##
When basic conditions are specified, it is normally best to balance the equations in acid, and then modify the final equations.
##”Sulfur (IV+)”## ##rarr## ##”Sulfur(VI+)”:##
##SO_3^(2-) + H_2Orarr SO_4^(2-) +2H^(+) + 2e^(-) ##
For basic conditions, add ##2xxHO^-## to EACH side ##(HO^(-) + H^(+)rarrH_2O)##:
##SO_3^(2-) + 2HO^(-) rarr SO_4^(2-) +H_2O + 2e^(-) ##
##”Copper (II+)”## ##rarr## ##”Copper (0)”:##
##Cu^(2+) + 2e^(-) rarr Cu##
You have asked another such question recently. Do you follow the method of doing redox equations?
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