Am nevoie urgent!!!

Răspuns:
1. 2Zn + O2 => 2ZnO
2. 2ZnS + 3O2 => 2ZnO + 2SO2
3. ZnO + 2NaOH => Na2ZnO2 + H2O
4. Zn(OH)2=> ZnO + H2O
5. ZnO + 2HCl => ZnCl2 + H2O
6. Na2ZnO2 + 4HCl => ZnCl2 + 2NaCl + 2H2O
7. ZnCl2 + 2KOH => Zn(OH)2 + 2KCl
8. Zn(OH)2 + 2HCl => ZnCl2 + 2H2O