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junior college 1 | H2 Maths
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Date Posted: 5 years ago
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First step: identify species that is oxidised and reduced;
Second step: split into oxidation and reduction half equations;
Third step: perform AOHE (elaboration in pic) ;
Fourth step: combine the 2 half equations and simplify
Second step: split into oxidation and reduction half equations;
Third step: perform AOHE (elaboration in pic) ;
Fourth step: combine the 2 half equations and simplify
Date Posted:
5 years ago
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Reduction half equation was condensed into 1 line for this qn. It can also be found in the data booklet.
Date Posted:
5 years ago
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In alkaline medium, after adding H⁺ to balance hydrogen, add OH⁻ to both sides
Date Posted:
5 years ago
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Reduction half equation was condensed to one line in blue. Full explanation is in red. For species that undergo disproportionation, like in c and d, (same species get reduced and oxidised), the reduction and oxidation half equations start with the same species.
Date Posted:
5 years ago
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