Question

осуществить превращения :. Al->Al2O3->Al2(SO4)3

Answer 1

1) 4Al + 3O2 = 2Al2O3;
2) Al2O3 + 3H2SO4 = Al2(SO4)3 + 3H2O 

Answer 2

Al->Al2O3->Al2(SO4)3

1)4Al+3O2->2Al2O3
2)Al2O3+3H2SO4->Al2(SO4)3+3H2O