P2O5 is a covalent compound used to purify sugar. What is the name of this compound?

For a covalent compound, prefixes show how many atoms of each element are present. P₂ means two phosphorus atoms, named diphosphorus, and O₅ means five oxygen atoms, named pentoxide. Therefore, P₂O₅ is diphosphorus pentoxide.

AI-written and checked against the verified answer.