Объяснение:
1) ZnCl2 + Na2S = ZnS ↓+ 2NaCl
2) ZnCl2 + 2NaOH = Zn(OH)2 + 2NaCl
3) HCl + NaOH = NaCl + H2O
4) FeCl3 + 3NaOH = Fe(OH)3 + 3NaCl
5) PbS + 2HCl = H2S + PbCl2
6) Mg(OH)2 + 2HCl = MgCl2 + 2H2O
Объяснение:
1) ZnCl2 + Na2S = ZnS ↓+ 2NaCl
2) ZnCl2 + 2NaOH = Zn(OH)2 + 2NaCl
3) HCl + NaOH = NaCl + H2O
4) FeCl3 + 3NaOH = Fe(OH)3 + 3NaCl
5) PbS + 2HCl = H2S + PbCl2
6) Mg(OH)2 + 2HCl = MgCl2 + 2H2O