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Page 1

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Properties of Lithium

1) A chemistry teacher wants to demonstrate the reaction of lithium, sodium and potassium in
water.



a) Describe how the lithium is stored. (1 mark)



b) The teacher first adds a small piece of lithium to water. There is some fizzing and the lithium
dissolves in the…

Page 2

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Calculations

1) A mining company has produced 400 tonnes of lithium chloride. What mass of lithium can they
produce from this? (Relative atomic masses Li 7, Cl 35.5) (3 marks)



2) The lithium produced by electrolysis has to be converted into lithium carbonate. The formula for
lithium carbonate is Li2CO3…

Page 3

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Describe the possible environmental impact of lithium chloride mining. (3 marks)







3) Widespread use of electric cars powered by lithium ion batteries would reduce air pollution in
city centres. Explain why electric cars would not reduce the overall level of carbon dioxide
emissions into the atmosphere. (2 marks)







Extraction of…

Page 4

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Li+ (l) + .......... ........... (3 marks)

c) What is produced at the other electrode? (1 mark)



d) Write an ionic equation for this reaction. (3 marks)



e) Explain why the lithium chloride has to be melted before it can be electrolysed. (3 marks)

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