Determine ΔG° for the following reactions. All answers are two 2 significant figures. (a) Hg2+(aq) + 2 Ag(s) → Hg(l) + 2 Ag+(aq) WebAssign will check your answer for the correct number of significant figures. kJ (b) H2(g) + Cu2+(aq) → Cu(s) + 2 H+(aq) WebAssign will check your answer for the correct number of significant figures. kJ (c) 2 Fe3+(aq) + Pb(s) → 2 Fe2+(aq) + Pb2+(aq) WebAssign will check your answer for the correct number of significant figures. kJ