Question

Помогите пожалуйста
HCl--->X--->Mg(OH)2--->MgSO4
Al--->Al2(SO4)3--->X--->Al2O3

Answer 1

1)2HCl + Mg = MgCl2 + H2

MgCl2 + 2NaOH = Mg(OH)2 + 2NaCl

Mg(OH)2 + H2SO4 = MgSO4 + 2H2O

2) 2Al + 3H2SO4 = Al2(SO4)3 + 3H2

   Al2(SO4)3 + 6NaOH = 2Al(OH)3 + 3Na2SO4

  2Al(OH)3 = Al2O3 + 3H2O