How many atoms are in a molecule of iron oxide (fe2o3)?
a. 3
b. 2
c. 1
d. 5

5 atoms are there in a molecule of iron oxide.

Explanation:

Number of various atoms in iron oxide =

Number of iron atoms = 2

Number of oxygen atoms = 3

Total number of atoms in iron oxide = 2 + 3 = 5

5 atoms are there in a molecule of iron oxide.

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