Respuesta :

Answer:

1.potassium sulphide 2. iron oxide 3. ammonium hydroxide

Explanation:

1. K2S has k+ ion and s2- ion which is known as sulphide ion therefore the name becomes potassium sulfide.

2. FeO has Fe2+ ion and O2- ion which is oxide ion therefore the name becomes Iron Oxide.

3. NH4OH has NH4+ ion hich is ammonium ion and OH- which is hydroxide ion therefore the name becomes ammonium hydroxide.