4Fe^2+ + O(suffix 2) ->4Fe^3+2O^2- please help I'm unable to understand this reaction involved in rustling of iron. It says that the oxidation state of iron is further increased by the oxygen atom when water is present in atmosphere.
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Providing the electrons for the above reaction is the oxidation of iron that may be described as follows: Fe → Fe2+ + 2 e. The following redox reaction also occurs in the presence of water and is crucial to the formation of rust: 4 Fe2+ + O2 → 4 Fe3+ + 2 O.
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