0 0 +3 -2
4Al + 3O2 = 2Al2O3
+3 -2 +1-1 +3 - 1 +1 -2
Al2O3 + 6HCl = 2AlCl3 + 3H2O
+3 -1 +1-2+1 +3-2+1 +1-1
AlCl3 + 2KOH = Al(OH)3 + 3KCl
+3 -2 +1 +3 -2 +1-2
2Al(OH)3 = Al2O3 + 3H2O
0 0 +3 -2
4Al + 3O2 = 2Al2O3
+3 -2 +1-1 +3 - 1 +1 -2
Al2O3 + 6HCl = 2AlCl3 + 3H2O
+3 -1 +1-2+1 +3-2+1 +1-1
AlCl3 + 2KOH = Al(OH)3 + 3KCl
+3 -2 +1 +3 -2 +1-2
2Al(OH)3 = Al2O3 + 3H2O