Question

How many atoms of oxygen are represented in 2Fe(NO3)2?

3
6
12
18

Answer 1

Answer : The number of atoms of oxygen present in
`2Fe(NO_3)_2` are, 12.

Explanation :

As we know that,
`Fe(NO_3)_2` is made up of the combination of iron and nitrate molecule.

In
`2Fe(NO_3)_2` compound, there are three elements which are iron (Fe), nitrogen (N) and oxygen (O).

The number of atoms of iron = 2

The number of atoms of nitrogen = 4

The number of atoms of oxygen = 12

Hence, the number of atoms of oxygen present in
`2Fe(NO_3)_2` are, 12.

Answer 2

12 oxygen atoms are represented in 2Fe(NO3)2.