Question

hoàn thành sơ đồ sau :

AL ---> Al2O3 ---> AlCl3 ---> Al(OH)3 ---> Al2(SO4)3

Answer 1

4Al+3O₂\(\overset{t^0}{\rightarrow}\)2Al₂O₃

Al₂O₃+6HCl\(\rightarrow\)2AlCl₃+3H₂

AlCl₃+3NaOH\(\rightarrow\)Al(OH)₃+3NaCl

2Al(OH)₃+3H₂SO₄\(\rightarrow\)Al₂(SO₄)₃+6H₂O

Answer 2

Al+O2→Al2O3( có nhiệt độ)

Al2O3+HCl→AlCl3+H2O

AlCl3+ NaOH→Al(OH)3+NaCl

Al(OH)3+H2SO4→Al2(SO4)3+H2O

(bạn tự cân bằng nhé)

Answer 3

4Al+3O2-t0->2Al2O3.

Al2O3+6HCl->2AlCl3+3H2O.

AlCl3+3NaOH->Al(OH)3+3NaCl.

2Al(OH)3+3BaSO4->Al2(SO4)3+3Ba(OH)2.