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What property characterizes a spontaneous redox reaction?
A. A positive oxidation potential for the oxidation half-reaction
B. A positive reduction potential for the reduction half-reaction
C. A positive sum of the two half-reactions' standard potentials
D. A negative sum of the two half-reactions' standard potentials



Sagot :

Answer: C

Explanation:

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A positive sum of the two half-reactions' standard potentials is a property characterizes a spontaneous redox reaction. Hence, option C is correct.

What is  spontaneous redox reaction?

Spontaneous reactions are reactions in which no external force is applied to proceed with the reaction.

A spontaneous redox reaction maybe a sort of reaction during which there usually the discharge of energy where the electrons are transferred from anode to cathode and this is also known as the electrochemical cells equation the reactions result in the generation of electricity.

Redox reactions are reactions in which loss or gain of electrons occur between an atom.

In other words redox reaction between Zn and Cu²⁺ is spontaneous this is due to the difference in potential energy between these two substance.

A positive sum of the two half-reactions' standard potentials is a property characterizes a spontaneous redox reaction. Hence, option C is correct.

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