Practice Activity 11.3 (11.4.3) - Chemical Effects of Electric Current

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6 sample questions

Question 1.
What is the purpose of the tester in Activity 11.3?
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Think about the components we use in the tester.
Question 2.
Name one good conductor of electricity.
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Recall the liquids we tested.
3Question 3.
Which liquid is a good conductor of electricity?
- Distilled Water
- Lemon Juice
- Vegetable Oil
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Recall our findings from the tests.
4Question 4.
True or False: Distilled water has high conductivity.
- True
- False
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What did we observe when testing distilled water?
Question 5.
Imagine you conducted an experiment with a liquid that showed no deflection on the compass needle. Propose a method to make that liquid conduct electricity and justify your approach.
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Think about what substances increase conductivity.
Question 6.
You performed the experiment with sugar dissolved in water, but no deflection occurred. Explain why sugar doesn’t conduct electricity.
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Consider the difference between ionic and covalent substances.

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