P2O5 Covalent Compound Name. The name of the covalent compound n2o5 is dinitrogen pentoxide, more commonly known as nitrogen pentoxide. There is two chlorine in the formula so the name of the second nonmetal is di + chloride = dichloride.
This white crystalline solid is the anhydride of phosphoric acid. 2 phosphorus together with 5 oxygen the 'a' of 'penta' is omitted when it comes before 'o' as in 'oxide'. How do you write the name p2o5?
