I have a prblem regarding electron ion method for balancing equation in chemistry

[Aafia]

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In ion electron method to balance equation we have to follow steps ... i am doing it but here i am confusing how to do this ....
There are two partial equations i have made in basic medium
1- H2PO2---------> H2PO3^-1
2-Fe(OH)3---------->Fe(OH)2
Now the second step is to balance the atoms
By adding 2OH for Oxygen and H2O for Hydrogen
But it cant solve
Helpp me plzzzzz
Thanks

 

[amy_k]

Hi there can you post the reaction and question in full so i can see how you have started this?