Electrochemical Cells Worksheet
Grade 12 Chemistry worksheet covering the principles, components, and applications of electrochemical cells.
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Electrochemical Cells: Grade 12 Chemistry
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Read each question carefully and provide clear, concise answers. Show all your work for calculations.
1. Which of the following statements is true regarding a galvanic (voltaic) cell?
It converts electrical energy into chemical energy.
It requires an external power source to operate.
The anode is where reduction occurs.
It generates electricity through a spontaneous redox reaction.
2. In an electrochemical cell, the salt bridge is essential for:
Allowing electrons to flow between half-cells.
Maintaining charge neutrality in the half-cells.
Acting as an external circuit.
Providing a medium for the redox reaction.
1. Oxidation always occurs at the cathode in an electrochemical cell.
True
False
1. In an electrolytic cell, a non-spontaneous redox reaction is driven by an external .
2. The standard electrode potential for the standard hydrogen electrode (SHE) is defined as volts.
1. Briefly explain the difference between a galvanic cell and an electrolytic cell.
2. Describe the function of a salt bridge in an electrochemical cell.
Match each term on the left with its correct definition on the right.
1. Anode
a. Electrode where reduction occurs
2. Cathode
b. Electrode where oxidation occurs
3. Electromotive Force (EMF)
c. The potential difference between two half-cells
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