Essential Chemistry for IGCSE - Air And Water (Section 6 - No. 34)
What is the general formula for hydrated iron(III) oxide(rust)?
Fe + O2 -> FeO2
Fe2O3.H2O
FeO + H2O -> Fe(OH)2
2Fe + 3O2 -> 2Fe2O3
Explanation
The general formula for hydrated iron(III) oxide (rust) is Fe2O3.H2O
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