A voltaic cell similar to that shown in Figure 20.5 is constructed. One half-cell consists of an aluminum strip placedin a solution of Al1NO323, and the other has a nickel stripplaced in a solution of NiSO4. The overall cell reaction is2 Al1s2 + 3 Ni2+1aq2 ¡ 2 Al3+1aq2 + 3 Ni1s2(a) What is being oxidized, and what is being reduced?(b) Write the half-reactions that occur in the two half-cells.(c) Which electrode is the anode, and which is the cathode?(d) Indicate the signs of the electrodes. (e) Do electronsflow from the aluminum electrode to the nickel electrodeor from the nickel to the aluminum? (f) In which directionsdo the cations and anions migrate through the solution?Assume the Al is not coated with its oxide

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Q: Payalben

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