Question

Составьте цепочку превращений:
1)Na-Na2O-NaOH-NaCl
2)S-SO3-H2SO4-MgSO4

Answer 1

4Na + O2 = 2Na2O
Na2O +H2O = 2NaOH
NaOH + HCl = NaCl + H2O

2S + 3O2 = 2SO3
SO3 + H2O = H2SO4
H2SO4 + Mg(OH)2 = MgSO4 + 2H2O