•(ii) Describe the structure of a typical metal, such as
zinc, and explain why it is malleable. [3]
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•(iii)
Suggest why the introduction of a different metallic atom into the structure makes
the alloy stronger than the pure metal. [2]
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–(c)
A solution of an impure zinc ore contained zinc, lead and silver(I) ions. The
addition of zinc dust will displace both lead and silver.
•(i) Write an ionic equation for the reaction between zinc atoms
and silver(I) ions. [2]