Respuesta :

Answer:

There are 3 Oxygen atoms

Explanation:

The little 3 on the right of it, indicates how many there are.

3 atoms of oxygen are there in 4H2PO3  

Explanation:

[tex]4H_2PO_3[/tex] exists as an anion. 4H2PO3[tex]4H_2PO_3[/tex] is s conjugate base of a phosphorous acid and  conjugate acid of a the hydrogenphosphite.

While representing any chemical compound ,numeric value that is suffixed before atom symbol denotes the number of atoms in that particular compound. In the equation[tex]4H_2PO_3[/tex], there are 4 of Hydrogen (H) atoms. Two of Phosphorus Monoxide (PO) atom.  And 3 of oxygen (O) atoms.  

Thus it can be concluded that there are 3 oxygen atom present in the DihydrogenPhosphate