Question

What is the oxidation state for each atom in the following reaction: 
4Fe + 3O2 → 2Fe2O3
a.  Elemental iron (Fe)  
b.  Elemental oxygen (O2) 
c.  One iron atom in Fe2O3   
d.  One oxygen atom in Fe2O3    

Answer 1

a. All elements in their elemental form have an oxidization state of 0.
b. All elements in their elemental state have an oxidization state of 0 even diatomic O2 has an oxidization state of 0.
c. Fe would have an oxidization sate of +3
d. Oxygen would have an oxidization state of -2

Answer 2

make sense?

Answer 3

yes thank you! @sweetburger