The two half-reactions for the nickel-cadmium battery are shown below. Describe

Question

The two half-reactions for the nickel-cadmium battery are shown below. Describe the direction of spontaneous electron flow in this electrochemical cell.

Select one:

a. From Cd to Ni(OH)2

b. From Cd to NiO(OH)

c. From Ni(OH)2 to Cd

d. From Ni(OH)2 to NiO(OH)

The two half-reactions for the nickel-cadmium battery are shown below. Describe the direction of spontaneous electron flow in this electrochemical cell. Cd(s) + 2OH-(aq) Ni(OH)O2(s) + OH-(aq) Select one: a. From Cd to Ni(OH)2 b. From Cd to NiO(OH) c. From Ni(OH)2 to Cd d. From Ni(OH)2 to NiO(OH) Cd(OH)2(s) + 2e- NiO(OH)(s) + H2O(l) + e-

Explanation / Answer

i-Cd batteries usually have a metal case with a sealing plate equipped with a self-sealing safety valve. The positive and negative electrode plates, isolated from each other by the separator, are rolled in a spiral shape inside the case. This is known as the jelly-roll design and allows a Ni

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