Which of the following is the correct way to write the formula for the compound diphosphorus pentoxide?

A.

P2O4



B.

PO4



C.

P5O

D.

P2O5
3.
Which of the following is the correct name for the compound SO3?
A.
monosulfur dioxide
B.
trisulfur monoxide
C.
sulfur trioxide
D.
trisulfur oxide
4.
Which of the following is the correct way to write the formula for the compound carbon tetrafluoride?
A.
CF2


B.
C2F2


C.
CF4


D.
C4F