2K[Ag(CN)2] + K2S --> Ag2S + 4KCN2[Ag(CN)2]- + S2- --> Ag2S + 4CN-2) K[Ag(NO2)2] + KBr --> AgBr + 2KNO2[Ag(NO2)2]- + Br- --> AgBr + 2NO2-3) [Cd(NH3)4]Cl2 + 2NaOH --> Cd(OH)2 + 4NH3 + 2NaCl[Cd(NH3)4]2+ + 2OH- --> Cd(OH)2 + 4NH3
2K[Ag(CN)2] + K2S --> Ag2S + 4KCN
2[Ag(CN)2]- + S2- --> Ag2S + 4CN-
2) K[Ag(NO2)2] + KBr --> AgBr + 2KNO2
[Ag(NO2)2]- + Br- --> AgBr + 2NO2-
3) [Cd(NH3)4]Cl2 + 2NaOH --> Cd(OH)2 + 4NH3 + 2NaCl
[Cd(NH3)4]2+ + 2OH- --> Cd(OH)2 + 4NH3