Sunday, July 9, 2017

redox - Can we oxidize oxygen?


I have encountered this equation: $$\ce{SO4^2- -> S2O8^2-}$$ In this reaction 2 of the oxygen ions change from $-2$ to $-1$ so they are getting oxidized.


It is because two oxygen ions are connected together.


A question rises: why can't we oxidize oxygen ions in $\ce{NO3-}$ or any other?




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