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Disproportionation a redox reaction in which one reactant forming two distinct products varying in oxidation state.
2 Sn2+(aq) → Sn(s) + Sn4+(aq)


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Combustion: a kind of redox reaction in which any combustible substance combines with an oxidizing element, usually oxygen, to generate heat and form oxidized products. The term combustion is usually used for only large-scale oxidation of whole molecules, i.e. a controlled oxidation of a single functional group is not combustion.
C10H8+ 12 O2 → 10 CO2 + 4 H2O
CH2S + 6 F2 → CF4 + 2 HF + SF6

Redox reactions

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Redox reactions: in which changes in oxidation numbers of atoms in involved species occur.
Those reactions can often be interpreted as transferences of electrons between different molecular sites or species.

An example of a redox reaction is:
2 S2O32−(aq) + I2(aq) → S4O62−(aq) + 2 I(aq)
In which I2 is reduced to I- and S2O32- (thiosulfate anion) is oxidized to S4O62-.
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