2Ag+ + S2O32- == Ag2S2O3Ag2S2O3 +H2O == Ag2S + H2SO4Ag2S2O3 + 3S2O32- == 2[Ag(S2O3)2]3-AgCI+2NH3·H20==Ag(NH3)2+ +C1-+2H20AgCl+S2O32-== 2[Ag(S2O3)2]3-+C1-