A voltaic cell is constructed with an Fe/Fe²⁺ half-cell and an Mn/Mn²⁺ half-cell. The iron electrode is positive.(a) Write balanced half-reactions and the overall cell reaction.

Respuesta :

Redox Half reaction

At cathode

Mn^+2 + 2e- → Mn                      (reduction)

At anode

Fe → Fe^+2  + 2e-                        (oxidation)

Overall reaction

Mn^+2  + Fe → Mn + Fe

How can one determine whether a reaction is a redox in nature?

1) Identify the reducing and oxidizing agents. To do this, we must determine their oxidation numbers.2) For oxidation and reduction, write half-reactions. To equalize the charges on both sides, we use electrons. Get the redox reaction, third. (1) and (2) can be combined to produce the redox reaction. The balanced redox reaction shouldn't have any electrons from the half-reactions.

What does the term "redox reaction" mean?

One species is reduced and another is oxidized in redox reactions. As a result, the species in question must shift in oxidation state. These reactions play a crucial role in the production and usage of energy in a variety of living systems, including humans and energy storage devices (batteries).

Learn more about redox reaction here:-https://brainly.com/question/28023605

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