Learners are provided with the following apparatus and a solution to assemble an electrochemical cell - NSC Technical Sciences - Question 5 - 2023 - Paper 2
Question 5
Learners are provided with the following apparatus and a solution to assemble an electrochemical cell.
Carbon rods | Beaker
Copper (II) chloride (aq) | Cell
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Worked Solution & Example Answer:Learners are provided with the following apparatus and a solution to assemble an electrochemical cell - NSC Technical Sciences - Question 5 - 2023 - Paper 2
Step 1
What TYPE of an electrochemical cell can be assembled using ALL of the apparatus above and the solution?
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Answer
The electrochemical cell that can be assembled using all the listed apparatus and solution is an electrolytic cell.
Step 2
Write down TWO components in the list above to justify the answer to QUESTION 5.1.
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Answer
Carbon rods
Copper (II) chloride solution
Step 3
Which ONE of the electrodes will be the ANODE? Write down only ELECTRODE CONNECTED TO POSITIVE TERMINAL or ELECTRODE CONNECTED TO NEGATIVE TERMINAL.
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Answer
ELECTRODE CONNECTED TO POSITIVE TERMINAL.
Step 4
Write down the half-reaction taking place at the anode.
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Answer
At the anode, the half-reaction is:
ightarrow ext{Cu}(s)$$
Step 5
Write down the NAME or FORMULA of the product formed at the anode.
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Answer
The product formed at the anode is Copper (Cu).
Step 6
Write down THREE examples of alternate energies.
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