Practice Cathode (negative Electrode) (6.2.2.2) - Chemical Effect of Electric Current

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6 sample questions

Question 1.
What is the definition of a cathode?
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Think about which electrode in electrolysis is associated with gaining electrons.
Question 2.
Name one process where cathodes are used.
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Consider applications that involve electrical energy.
3Question 3.
At the cathode, do cations gain or lose electrons?
- Gain
- Lose
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Remember the function of the cathode.
4Question 4.
True or False: The cathode is the positive electrode in an electrolytic cell.
- True
- False
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Consider which electrode is associated with reduction.
Question 5.
A student conducts an experiment with copper sulfate and observes how much copper is deposited on the cathode after one hour. How can they calculate the mass of copper deposited based on the current used?
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Remember the formula relating current, charge, and time.
Question 6.
Suggest two ways to improve the efficiency of metal deposition at the cathode during electrolysis. Explain your reasoning.
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Consider the balance of ions and current flow.

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