Consider a voltaic cell that corresponds to the following reaction: Fe(s) + Ni²⁺(aq) $\rightarrow$Fe²⁺(aq) + Ni(s) Which of the following statements is correct?

Question

Quizplus · Accepted Answer

In a voltaic cell, the species that is reduced (gains electrons) is called the cathode, while the species that is oxidized (loses electrons) is called the anode. In the given reaction, Fe is oxidized to Fe2+ while Ni2+ is reduced to Ni. Therefore, the nickel electrode is the cathode, where reduction takes place, and the iron electrode is the anode, where oxidation takes place. Furthermore, a salt bridge is necessary in order to allow for the flow of ions between the two half-cells, since the charges on the two sides of the reaction are not equal. Finally, the given reaction involves the transfer of 2 electrons per atom of iron that reacts, not 4.

Consider a Voltaic Cell That Corresponds to the Following Reaction →\rightarrow→

Consider a Voltaic Cell That Corresponds to the Following Reaction $\rightarrow$