Problem: What is the chemical formula for diphosphorus pentoxide?a. P4O3b. P2O5c. P2O4d. PO3e. P2O

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Rules for naming molecular compounds:

1. The first nonmetal is named normally and uses numerical prefixes except mono.
2. The second nonmetal keeps its base name but has its ending changed to -ide.

Numerical Prefixes:

Mono              1                     Di                    2
Tri                   3                     Tetra               4
Penta             5                      Hexa              6
Hepta             7                      Octa               8
Nona              9                      Deca              10

*numbers are written as subscripts of the element in the chemical formula

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Problem Details

What is the chemical formula for diphosphorus pentoxide?

a. P4O3
b. P2O5
c. P2O4
d. PO3
e. P2O

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