What do the name and formula of a molecular compound describe?

The name along with the formula in a molecular compound describe the number of atoms in a molecular compound along with the type that it is. Sometimes even Roman numerals are utilized to distinguish between different ions of transition metals. For example:

LiCl - - > Lithium Chloride

PbSO4--> Lead Sulfate

Na3N--> Sodium Nitride

BaO--> Barium Oxide

P2O5--> Diphosphorus Pentaoxide