CuCl2 + H2s = Na2CO3 + HCl = ZnCl2 + NaOH =
H2S+CuCL2=2HCl+CuS Na2CO3+2HCL=H2CO3 + 2NaCl ZnCl2 + 2NaOH = Zn(OH)2↓ + 2NaCl
CuCl2+H2S=CuS(осадок)+2HCl Na2CO3+2HCl=2NaCl+H2O+CO2 ZnCl2+2NaOH=2NaCl+Zn(OH)2 - осадок