Respuesta :

Answer:

1. FeS + 2HCl = FeCl₂ + H₂S

2. Na + F = NaF

3. 2HgO = 2Hg + O₂

Step-by-step explanation:

1. Iron(II) Sulfide + Hydrogen Chloride = Ferrous Chloride + Hydrogen Sulfide

2. Sodium fluoride

3. Mercury(II) Oxide = Mercury + Dioxygen