Question

Write the chemical formulae of the following compounds:
a. Magnesium sulphide
b. Ferric chloride

Answer 1

1) mgs
2)Fecl3
these are chemical formula of the compounds

Answer 2

b. FeCl2

a. MgS

ferric is the lower valency of iron, i.e. 2, and chlorine valency= -1.

magnesium valency= 2+, Sulphide valency= 2-