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A metal deposition on one of the electrodes and B metal dissolution from the other one...

A metal deposition on one of the electrodes and B metal dissolution from the other one was observed in a working electrochemical cell. Could this system be a galvanic cell (spontaneously working) and if YES under what experimental conditions? E0 A/A 2+ = 333 mV (nhe), E0 A/A + = 950 mV (nhe), and E0 B/B + = 650 mV (nhe)?

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