1)Al -> Al2O3 -> Al2(SO4)3; 2) K-> K2O -> KOH-> KCl

Question

1)Al -> Al2O3 -> Al2(SO4)3; 2) K-> K2O -> KOH-> KCl

Answer 1

1)Al -> Al2O3 -> Al2(SO4)3

2AL+3O2=2AL2O3

AL2O3+H2SO4=AL2(SO4)3+H2O

2) K-> K2O -> KOH-> KCl

K+O2=K2O

K2O+H2O=2KOH

KOH+HCL=KCL+H2O

Answer 2

1)4Al+3O2->2Al2O3

   Al2O3+3H2SO4 ->Al2(SO4)3+3H2O

 2)2K+O2 -> K2O2 

   K2O+H2O ->2KOH

   Cl2+KOH -> KCl+KClO+H2O