Redox reactions are chemical reactions where electrons are transferred between reactants. In these reactions, one substance loses electrons (oxidation
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Is combustion always a redox reaction?
Yes, combustion is always a redox reaction. The fuel is oxidized (loses electrons), and oxygen is reduced (gains electrons). Energy is released during combustion.
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Can an element be oxidized and reduced in the same reaction?
Yes, in disproportionation reactions, a single element can be both oxidized and reduced. Example: Cl2 + 2NaOH → NaCl + NaClO + H2O. Chlorine is both oxidized (0 to +1) and reduced (0 to -1).
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What is the relationship between redox reactions and electrochemistry?
Redox reactions involve electron transfer. In electrochemistry, this electron transfer is harnessed to produce electricity (in batteries) or used to drive reactions (in electrolysis).
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