Question
The manganate(VII) ion has the formula MnO4^−. The oxidation number of each oxygen atom is −2 and the overall charge on the ion is −1.
[2 marks]
Calculation
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Include the unit where there is one (e.g. a magnification ×100, or a rate in cm³/min).
Modelled on Cambridge 0620 · May/Jun 2025 · Paper 42 · Q4(c)(ii)
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Modelled on Cambridge 0620 · May/Jun 2025 · Paper 42 · Q4(c)(ii)