Question

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Answer 1

Răspuns:

1. 4Na+O2→2Na2O

2. Zn+ S → ZnS

3. Cu+ S→ CuS

4. Mg+F2→MgF2

5. 2 Ag + O2 → 2 AgO

6.2Al + 3Br2 → 2AlBr3

7.2Hg + O2→2HgO

8. 3K + P → K3P

9.3H2+N2→2NH3

10.  Zn + S→ ZnS

11. 2Al+3H2→2AlH3

12. 2Al + 3H2SO4 → Al2(SO4)3 + 3H2

13.Ca + 2 HCl  → CaCl2 + H2

14. Ba+Cl2→BaCL2

15. Mg + S → MgS

16. S+O2→SO2

17.P4+5O2→2P2O5

18.P4 + 6H2 → 4PH3

19.Pb+O2→PbO2

20. Ca+Br2→CaBr2

Explicație: