Electrochemical Cells Worksheet
Explore the principles of electrochemical cells, including voltaic and electrolytic cells, at a Grade 9 level.
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Electrochemical Cells Worksheet
Name:
Date:
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Read each question carefully and answer to the best of your ability. Show all your work where applicable.
1. Which type of electrochemical cell uses a spontaneous redox reaction to generate electrical energy?
Electrolytic cell
Voltaic (Galvanic) cell
Fuel cell
Electrochemical capacitor
2. In an electrochemical cell, oxidation occurs at the:
Cathode
Anode
Salt bridge
Electrolyte
1. The flow of electrons in an electrochemical cell is from the to the .
2. A bridge is used to maintain electrical neutrality in a voltaic cell.
3. In an electrolytic cell, electrical energy is used to drive a redox reaction.
1. All redox reactions are spontaneous.
True
False
2. The cathode is always the positive electrode in an electrochemical cell.
True
False
1. Briefly explain the difference between a voltaic (galvanic) cell and an electrolytic cell.
2. Describe the role of the salt bridge in a voltaic cell.
Match the term on the left with its definition on the right.
1. Oxidation
a. Gain of electrons
2. Reduction
b. Loss of electrons
3. Electrolyte
c. A substance that conducts electricity when dissolved in water or molten
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