Which of the following statements is true?
(a) Only compounds with negative redox potentials can donate electrons to other compounds under standard conditions.
(b) Compounds that donate one electron have higher redox potentials than those compounds that donate two electrons.
(c) The ?E0' of a redox pair does not depend on the concentration of each member of the pair.
(d) The free-energy change, ?G, for an electron-transfer reaction does not depend on the concentration of each member of a redox pair.
Answer:

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