Question

what happens when HCl is poured into Al foil

Answer 1

The HCl breaks down the protective oxide layer that forms on aluminium 


Al2O3 + 6HCl ===> 2AlCl3 + 3H2O 


then the acid reacts with the exposed metal 


2Al + 6HCl ===> 2AlCl3 + 3H2

Answer 2

Yes..the protective oxide layer that forms on aluminium when the hydrochloric acid breaks down..and..then the acid reacts with the metal .