how Fe2O3 is formed? then how Fe3O4 is formed? what is the difference?
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fe2.xOh3 is formed when iron is exposed to oxygen and moisture
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Answer:
Valency of Iron=2,3
In this compound, we have used an Iron atom with valency 3
Valency of Oygen=2
By crisscrossing the valency we get the compound Fe2O3
Fe3O4 is a trickier compound.
Here 3 atoms of Fe are used in which two of them have a charge of +3 and one atom has a charge of +2. So, total charge of 3 Fe atoms= 3+3+2= +8
4 atoms of oxygen are used each with charge -2. So, the total charge of 4 Oxygen atoms= -8
Thus, 4 atoms of oxygen, 2 atoms of iron with charge 3, and one atom of iron with charge 2 form the compound Fe3O4.
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