Question

Al2O3→Al3(SO4)3→Al(OH)3→Al2O3

Answer 1

Ответ:

Al2O3+3H2SO4=Al2(SO4)3+3H2O

Al2(SO4)3+6KOH=2Al(OH)3+3K2SO4

2Al(OH)3=Al2O3+3H2O