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What is the name of the molecular compound $\mathrm{P}_{2} \mathrm{O}_{5}$ ? Enter the name of the compound. View Available Hint(s) Phosphorus pentoxide 1 Phosphorus pentoxide is the name for $\mathrm{PO}_{5}$, not $\mathrm{P}_{2} \mathrm{O}_{5}$. No credit lost. Try again. Submit Previous Answers
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Step 1:
: Recognize the formula of the given compound

The given molecular compound is $\mathrm{P}_{2} \mathrm{O}_{5}$.

Step 2:
: Identify the number of each atom in the compound

- There are 2 atoms of Phosphorus (P) in the compound. - There are 5 atoms of Oxygen (O) in the compound.

Step 3:
: Name the compound by stating the number of each atom followed by the name of the element

- Since there are 2 Phosphorus atoms, we use the prefix "di-" (for two) before the element name "phospho-". - The name of Oxygen is "oxide" when it is the second element in the compound.

Step 4:
: Combine the names of the elements to form the name of the compound

The name of the compound $\mathrm{P}_{2} \mathrm{O}_{5}$ is Diphosphorus pentoxide.

Final Answer

The name of the compound $\mathrm{P}_{2} \mathrm{O}_{5}$ is Diphosphorus pentoxide.