Answer:
[tex]AlI_3[/tex]
Explanation:
Combination reactions are the reactions in which two or more atoms/ molecules combine to give a single product.
Aluminum metal combines with iodine to given aluminium iodide.
Aluminium has a valency of 3 and iodine has valency of 1, so the formula is [tex]AlI_3[/tex]
The reaction is shown below as:
[tex]Al_{(s)}+I_2_{(s)}\rightarrow AlI_3_{(s)}[/tex]