Practice Summary (2.9) - Electrochemistry

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8 questions

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Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
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Quiz
2 questions · about 1 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
Define an electrochemical cell.
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Think about the definition in terms of energy transfer.
Question 2.
What is a galvanic cell?
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Consider the energy conversion that occurs in this cell.
3Question 3.
What is the main function of an electrochemical cell?
- Convert chemical energy to electrical energy
- Store heat energy
- Utilize light energy
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Think about the process of energy transformation.
4Question 4.
True or False: Electrolytic cells generate electrical energy.
- True
- False
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Consider the direction of energy flow.
Question 5.
Calculate the standard cell potential for a galvanic cell consisting of Zn and Cu with given ion concentrations.
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Set up the equation according to the reactions at the electrodes.
Question 6.
Discuss how varying concentrations affect the efficiency of an electrolytic cell.
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Consider the necessity of ions in completing the circuit in electrolysis.

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