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10.3 Using materials

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Question 31

A manufacturer is choosing an alloy to make a hard-wearing key.

AlloyElements present
Pcopper and tin
Qcopper and zinc
Riron and carbon

Which alloy is brass?

Explain, in terms of its atoms, why brass is harder than pure copper.

[3]
Markscheme

10.3 Using materials Questions

  1. GCSE
  2. /Chemistry
  3. /10.3 Using materials

118 exam-style questions on AQA GCSE Chemistry 10.3 Using materials, covering 10.3.1 Corrosion and its prevention, 10.3.2 Alloys as useful materials, and 10.3.3 Ceramics, polymers and composites. Each one has a worked solution and a mark scheme showing where the marks go.

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