Respuesta :
The redox reaction consists of the reduction and the oxidation halves and involves the transfer of electrons. The overall voltage for the Mg and Cu is 0.34 - (-2.37). Thus, option C is correct.
What is a nonspontaneous redox reaction?
A nonspontaneous redox reaction is the loss and gain of the electrons when an external source of voltage is applied to initiate the electrochemical reaction.
The overall voltage of the redox reaction can be given by the oxidation and the reduction of half of the cell as,
Oxidation half: Mg(s) → Mg₂⁺ + 2e⁻ E° = -2.37 v
Reduction half: Cu₂⁺ + 2e⁻ → Cu(s) E° = + 0.34 v
The overall voltage of the cell (E° cell) is calculated as,
E° cell = E°(reduction) - E°(oxidation)
= +0.34 - (-2.37)
= 2.71 v
Therefore, option C. 0.34 - (-2.37) is the overall voltage for the nonspontaneous redox reaction.
Learn more about redox reaction here:
https://brainly.com/question/14217644
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Your question is incomplete, but most probably your full question was, What is the overall voltage for a redox reaction with the half-reactions Mg(s) → Mg₂⁺ + 2e⁻ and Cu₂⁺ + 2e⁻ → Cu(s)?
A. -2.37 - 0.34
B. 0.34 - 2.37
C. 0.34 - (-2.37)
D. 2.37 - 0.34
