Al - AlCl3 - Al(OH)3 - Al2(SO4)3 BaSO4

Question

Al - AlCl3 - Al(OH)3 - Al2(SO4)3 BaSO4

Answer 1

2Al + 3H₂SO₄ = Al₂(SO₄)₃ + 3H₂
 Al₂(SO₄)₃ + 6KOH = 2Al(OH)₃ + 3K₂SO₄
2Al(OH)₃ + 3H₂SO₄ = Al₂(SO₄)₃ + 6H₂O
Al₂(SO₄)₃  + 3Ba(NO₃)₂ = 3BaSO₄ + 2Al(NO₃)₃