Electrochemistry

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Last updated 10:21 AM on 9/7/26
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4 Terms

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Oxidation & reduction in terms of electron transfer

Oxidation / agent: loss of electrons / substance that gives electrons to another substance

Reduction / agent: gain of electrons / substance that takes electrons from another substance

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<p>Oxidation numbers (MEMORISE)</p>

Oxidation numbers (MEMORISE)

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<p>Disproportionation</p>

Disproportionation

Occurs when the substance is both oxidised and reduced at the same time.

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Oxidation & reduction in terms of change in oxidation number

Oxidation:

  • Increase in oxidation number

  • E.g. atom goes from 0 to +2, atom is oxidised

  • AKA lost electrons

Reduction:

  • Decrease in oxidation number

  • E.g. atom goes from +2 to 0, atom is reduced

  • AKA gained electrons