Question

which compound is formed when aluminium reacts with hydrochloric acid

Answer 1

Al + HCl ------> AlCl3 + H2

Hope it helps

Answer 2

Answer: Aluminium chloride and hydrogen gas are formed when aluminium reacts with hydrochloric acid.

Explanation:

The reaction is between metal and acid which will give salt and hydrogen gas as products.

Reaction follows as:

$2Al(s)+6HCl(aq)\rightarrow 2AlCl_3(aq)+3H_2(g)$

When aluminum reacts with hydrochloric acid its forms aluminium chloride with liberation of hydrogen gas.