Question

Using the two cell reduction potentials shown for their corresponding reaction, calculate the cell potential for a voltaic cell made from these two systems. (HELP ASAAAP)
A)

1.68 V

B)

0.78 V

C)

–1.68 V

D)

–0.78 V

Answer 1

Answer:

multiply the first equation by 3 to cancel the electrons in both equations

then combine both equations

then minus both cell potentials which equals 0.78 V

I'm not sure though