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Electrochemical reactions and oxidation-reduction reactions are similar because they both: A. Involve the transfer of electrons. B. Must be spontaneous. C. Take place with all reactants in physical contact.
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Electrochemical reactions and oxidation-reduction reactions are similar because they both:

A. Involve the transfer of electrons.
B. Must be spontaneous.
C. Take place with all reactants in physical contact.
D. Require an input of energy to occur.

User Nejcs
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3 votes
 I think it's C. (I think.)
User Dajood
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1 vote
It's A because they need each other to make a reduction.
User Drshock
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7.7k points
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