Question

What is the IUPAC name for the compound FeS?

Answer 1

The IUPAC name for the compound FeS is Iron(II)Sulfide. IUPAC stands for  International Union of Pure and Applied Chemistry. This is an organization that establishes official names of chemical elements and compounds. Hope this is the answer that you are looking for. 

Answer 2

Answer:

The correct answer is “Iron(II) sulfide.”

Explanation:

It is pretty obvious there is presented an iconic compound made by iron written as Fe and a sulfur, S that is a nonmental instead. A metal as iron will form a cation and a nonmetal an anion. The sulfur will need 2 electrons from iron in order to complete its octet and in this way the iron equilibrates the sulfur. It can give it 2, so that is why we write it in Roman numbers, and form the formula above.