Question

Продолжить генетический ряд:
1) S→SO₂→Na₂SO₃→SO₂
2)Mg→MgO→MgSO₄→Mg(OH)₂

Answer 1

1) S→SO₂→Na₂SO₃→SO₂;

S+O₂=SO₂;

SO₂+2NaOH=Na₂SO₃+H₂O;

Na₂SO₃+2HCl=SO₂+2NaCl+H₂;

 

2) Mg→MgO→MgSO₄→Mg(OH)₂;

2Mg+O₂=2MgO;

MgO+Na₂SO₄=MgSO₄+Na₂O;

MgSO₄+2KOH=Mg(OH)₂+K₂SO₄.