Question: Use a table of standard reduction potentials to determine which of the following pairs of reactants will result in a spontaneous reaction at 2 5

Use a table of standard reduction potentials to determine which of the following pairs of reactants will result in a spontaneous reaction at 25\deg C.
Pb2+(aq)+ Cu(s)
Ag+(aq)+ Br(aq)
Na+(aq)+ Al(s)
Fe3+(aq)+ Fe(s)

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