In an electrolytic cell
A) a chemical reaction occurs spontaneously and releases energy as electricity.
B) electricity causes a chemical reaction to occur.
C) a physical change occurs spontaneously and releases energy as electricity.
D) electricity causes a physical change to occur.
Correct Answer:
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Q2: Which species is reduced in the
Q3: During a redox reaction,the oxidation number of
Q4: The reducing agent is
A)the species that is
Q5: What is the oxidation number of oxygen
Q6: What always occurs at the cathode in
Q7: What is the oxidation number of manganese
Q8: Reduction is the
A)gain of protons.
B)loss of protons.
C)gain
Q9: Which species is oxidized in the
Q10: In a voltaic cell
A)a chemical reaction occurs
Q11: What always travels through the external circuit
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