Answer:
[tex]2Al + 6 HCl ---> 2AlCl_3 + 3 H_2[/tex]
Explanation:
The valency of aluminium is +3 while the valency of chlorine is -1
we will first write the half reactions
Half oxidation reaction
[tex]Al -----> Al^{3+} + 3^{e-}\\2H^+ 2e^- ----> H_2\\Cl + e^- -----> Cl^-[/tex]
Now will write the complete equation-
[tex]Al + HCl -----> AlCl_3 + H_2[/tex]
The balanced equation would be
[tex]2Al + 6 HCl ---> 2AlCl_3 + 3 H_2[/tex]
