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.
