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The half - cell reactions of a galvanic ...

The half - cell reactions of a galvanic cell are :
`Ni_(2)O_(3)(s)+H_(2)O(s)+2e rarr 2NiO(s)+2OH^(-)(aq), E^(@)=+0.4V`
`FeO(s)+H_(2)O(l)+2e rarr Fe(s)+2OH^(-)(aq), E^(@)=-0.87V`
Write the cell reaction.

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`{:("Cathode reaction : "Ni_(2)O_(3)(s)+H_(2)O(l)+2e rarr2NiO(s)+2OH^(-)(aq)),("Anode reaction :"Fe(s)+2OH^(-)(aq)rarr FeO(s)+H_(2)O(l)+2e),(bar(" Cell reaction : "Ni_(2)O_(3)(s)+Fe(s)rarr2NiO(s)+FeO(s)" ")):}`
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