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Mon 23 Feb, 2004 01:52 pm
In the reactions below identify which elements have been oxidised and which have been reduced.
Anode (+) Fe(s) ------------> Fe2+(aq) + 2e-
Cathode (-) H2O(l) + 1/2O2(aq) + 2e- ---------> 2OH-(aq)
Anyone, please
Marts
OILRIG. Oxidation is loss of electrons, reduction is gain of electrons.
Look at the oxidation no. for iron. It's gone from 0 to 2+, so it's been oxidised, which always happens to the anode. This is the oxidation half.
In the cathode, water has been reduced. THis is the reduction half.
Wilso - many thanks - much appreciated
Regards - Marts
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