Predict reaction and calculate E°cell from standard reduction potentials. A voltaic cell is constructed from a standard Al3+|Al half cell (E°red = -1.660V) and a standard F2|F° half cell (E°red = 2.870V). What is the spontaneous reaction that takes place, and what is the standard cell potential? Spontaneous cell reaction:Write a balanced equation using the smallest integer coefficients possible. + + Standard cell potential: V.

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