-What type of reaction occurs at a magnesium anode of a voltaic cell: oxidation

Question

-What type of reaction occurs at a magnesium anode of a voltaic cell: oxidation or reduction?

-What is the reaction that occurs at a magnesium anode of a voltaic cell?

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For the following galvanic cell, represented in line notation, determine what balanced half-reactions occur at each electrode. (Use the lowest possible whole number coefficients. Include states-of-matter under the given conditions in your answer.) Cr(s) Cr3+(aq) 1I Cd2+(aq) | Cd(s) anode half-reaction: chemPad Help Greek cathode half-reaction: chemPad Help Greek

Explanation / Answer

-Oxidation half reaction takes place at the magnesium anode of the galvanic cell.

-The reaction that occurs at magnesium anode is as follows:-

Mg ----> Mg2+ + 2e-

The balanced half reaction for each half cell is as follows :-

Cr ----> Cr3+ + 3e- ( Oxidation half reacion)

Cd2+ + 2e- ----> Cd ( Reduction half reaction )

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