Question

1.alcl3--->al(oh)3---->al2(so4)3
2.al(oh)3--->naalo2

Answer 1

AlCl3+3NaOh=3NaCl+Al(OH)3
2Al(OH)3+3H2SO4=6H2O+Al2(SO4)3
Al(OH)3+NaOH=(сплавление)=NaAlO2+H2O