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This question is about alloys.

Bronze is an alloy of copper and tin.

Atomic arrangement of a pure metal and an alloy

a.

A sample of bronze has 3 tin atoms for every 22 copper atoms. Determine the percentage of atoms in this sample of bronze that are tin atoms.

[2]
b.

Explain why bronze is harder than pure copper. Complete the sentences:

  • "This is because the atoms of copper and tin have different _______________."
  • "Therefore, the layers of atoms cannot easily _______________."
[2]

Using materials (chemistry only) Questions

Practise AQA GCSE Chemistry Using materials (chemistry only) with exam-style questions for Foundation and Higher tier. 24 questions covering Corrosion and its prevention, Alloys as useful materials, and Ceramics, polymers and composites, matched to the AQA GCSE Chemistry (8462) specification and written in Paper 1 and Paper 2 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.

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Using materials (chemistry only) Questions

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