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5.1 Obtaining and using metals

5.1 Obtaining and using metals

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Question 1

An environmental analyst is performing a Life Cycle Assessment (LCA) on copper piping used in domestic central heating systems.

The four key stages of this specific product's life cycle are described below out of order:

  • P Transporting decommissioned plumbing systems to a smelting facility for secondary recovery or sending them to a landfill.
  • Q Excavating chalcopyrite ore from an open-pit mine and concentrating it via froth flotation.
  • R Installing the pipe in a residential heating system and periodically flushing it to prevent scale buildup.
  • S Melting copper billets, extruding them into hollow tubes, and wrapping them in protective plastic sleeves.

List the stages of this life cycle assessment in the correct chronological order from start to finish. Use the letters P, Q, R, S.

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Markscheme

5.1 Obtaining and using metals Questions

  1. GCSE
  2. /Chemistry
  3. /5.1 Obtaining and using metals

110 exam-style questions on Edexcel GCSE Chemistry 5.1 Obtaining and using metals, covering 5.1.1 The reactivity series of metals, 5.1.2 Displacement reactions as redox reactions, 5.1.3 Extracting metals from ores by reduction, 5.1.4 Biological methods of metal extraction, 5.1.5 Resistance to oxidation and recycling metals, and 5.1.6 Life cycle assessment. Each one has a worked solution and a mark scheme showing where the marks go.

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