In a single displacement reaction between 4 fecl3 and 3 o2, what will the final charge of each oxygen be?

The charge on each oxygen atom is -2 while overall charge is -6.

Explanation:

Single replacement:

It is the reaction in which one elements replace the other element in compound.

AB + C → AC + B

Chemical equation:

FeCl₃  + O₂   →  Fe₂O₃ +  Cl₂

Balanced Chemical equation:

4FeCl₃  + 3O₂   →  2Fe₂O₃ + 6Cl₂

This is the example of single displacement reaction. Oxygen displace the chlorine from iron and get combine with it.

The charge on each oxygen atom is -2 while on each iron atom is +3. Thus overall charge on three oxygen atom is -6 while overall charge on iron atom is +6. Thus overall compound will be neutral.

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the answer would be a