MCAT Question of the Day
    •

    Q:

    		 Which half-reaction correctly represents reduction?
    		 

    A

    		 Cr3+ + 3e- -> Cr(s)

    B

    		 Cr3+ -> Cr(s) + 3e-

    C

    		 Cr(s) -> Cr3+ + 3e-

    D

    		 Cr(s) + 3e- -> Cr3+



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