Question

1. give the correct chemical formula for the chemical compound diphosphorus pentoxide.

Explanation:

Step1: Analyze prefixes

Prefix "di -" means 2 (for phosphorus), "penta -" means 5 (for oxygen).

Step2: Write chemical formula

Chemical symbol for phosphorus is $P$, for oxygen is $O$. So formula is $P_2O_5$.

Answer:

$P_2O_5$