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How to Write the Name for P2O5

Learning to name chemical compounds requires that you:

  • Determine the type of compound you are working with.
  • Apply the rules for naming that type of compound.
  • Practice until it becomes second nature.
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Get more practice naming compounds.

For P2O5 use the hints and resources below to help write the name.

Hint for Naming P2O5

We have two non-metals so this is a molecular compound.

For molecular compounds we use prefixes to describe the number of each type of element.

Be careful with this compound - we don't put two vowels together (drop the a in penta).

mono di tri tetra penta hexa hepta octa non dec
1 2 3 4 5 6 7 8 9 10

P2O5 Resources