CHEMISTRY 5070 · STRUCTURED PRACTICE
1
Copper and sodium are both metallic elements, but they exhibit contrasting chemical and physical behaviours.
(a)
[3]Describe the metallic bonding in pure copper and explain why copper can be hammered into thin sheets without breaking.
(b)
[3]Compare the reactions of sodium and copper with cold water and with dilute hydrochloric acid.
(c)
[2]Magnesium reacts with steam to produce a solid oxide and a flammable gas. Write a balanced chemical equation with state symbols for this reaction.
Total: 8 marks