Electrolysis
Authored by Anna McCrary
Chemistry
8th - 10th Grade
Used 7+ times
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9 questions
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1.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
A Lithium ion (Li+) has two electrons. What needs to happen to it for it to turn back into an atom?
Gain one electron
Lose one electron
Gain two electrons
Lose two electrons
2.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
An oxide ion (O2-) has 10 electrons. What needs to change for it to become an atom?
Gain one electron
Lose one electron
Gain two electrons
Lose two electrons
3.
FILL IN THE BLANKS QUESTION
15 mins • 1 pt
A liquid, containing free-moving ions, which is broken down by electricity in the process of electrolysis is called the (a)
4.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
The positive electrode in electrolysis is called the.....
anode
cathode
5.
OPEN ENDED QUESTION
15 mins • Ungraded
During the electrolysis of Aluminium oxide, aluminium ions move to the negative electrode. Explain why. (2 marks)
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6.
OPEN ENDED QUESTION
15 mins • Ungraded
A student investigated the electrolysis of zinc chloride. They observed that a silvery metal was produced at the negative electrode and a yellow-green gas was produced at the positive electrode. What happed to the zinc chloride? Name the products at each electrode. (3 marks)
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7.
OPEN ENDED QUESTION
15 mins • Ungraded
When solid zinc chloride was used there was no reaction. Explain why. (2 marks)
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