Respuesta :

Al2S3. Al has a +3 charge and S has a -2 charge, generally speaking

Answer: Al2S3

Explanation: The oxidation number of Al is +3 since it is in group 3 ( Al+3).

Sulfur is in group 6 and has an oxidation of -2 since it is a nonmetal and an anion.

Criss cross the charges and write them as subscripts.

So the chemical composition is

Al2S3