Doc Brown's Edexcel GCSE Science-Chemistry Revision Notes

EDEXCEL GCSE Science Unit C1 Chemistry in our world STUDY NOTES

PLEASE NOTE NEW revision summaries for the NEW Edexcel GCSE Chemistry and the NEW Edexcel GCSE Combined Science Chemistry courses: Revision for Paper 1 (Topics 1-5) and  Paper 2 (Topics 6-9) STARTING with Y10 in Sept. 2016 onwards, first exams in 2018

Chemistry Unit C1 Topic 4 Obtaining and using metals Revision Notes

  • 4.1 Know that:
    • a) most metals are extracted from ores found in the Earthís crust
    • b) unreactive metals are found in the Earth as the uncombined elements
  • 4.2 Be able to describe how most metals are extracted from their ores by:
    • a) heating with carbon, illustrated by iron
    • b) electrolysis, illustrated by aluminium
    • (note that knowledge of the blast furnace or the electrolytic cell for aluminium extraction are not required)
  • 4.3 Be able to explain why the method used to extract a metal is related to its position in the reactivity series and cost of the extraction process.
  • 4.4 Revise any practical investigation you did into methods for extracting a metal from its ore.
  • 4.5 Be able to recognise and describe oxidation as the gain of oxygen and reduction as the loss of oxygen.
  • 4.6 Know that the extraction of metals involves reduction of ores.
  • 4.7 Know that the oxidation of metals results in corrosion.
  • 4.8 Be able to demonstrate an understanding that a metalís resistance to oxidation is related to its position in the reactivity series.
  • 4.9 Be able to discuss the advantages of recycling metals, including economic implications, and how recycling preserves both the environment and the supply of valuable raw materials.
  • 4.10 Be able to describe the uses of metals in relation to their properties, including:
    • a) aluminium
    • b) copper
    • c) gold
    • d) steel
  • 4.11 Using models-diagrams be able to explain why converting pure metals into alloys often increases the strength of the product
  • 4.12 Know and understand that iron is alloyed with other metals to produce alloy steels with a higher strength and a greater resistance to corrosion.
  • 4.13 HT only: Be able to describe how alloying changes the properties of metals, including:
    • a) smart or shape memory alloys, including nitinol, an alloy of nickel and titanium
    • b) gold alloys with higher strength, including fineness (parts per thousand) and carats to indicate the proportion of pure gold.
  • 4.14 HT only: Be able to demonstrate an understanding that new materials are developed by chemists to fit new applications, such as the creation of new shape memory alloys for use, for example, in spectacle frames and as stents in damaged blood vessels.
  • Revision Notes and Quizzes to help you revise

    • Edexcel GCSE Science Chemistry

    • When revising, these pages provide you with a summary of what you need to know and be able to do.

    • BUT remember, your primary source of revision are your class notes, investigations and Edexcel GCSE science textbooks.

  • EDEXCEL GCSE Science CHEMISTRY 1 UNIT 1 C1 Chemistry in our world INDEX


  • PLEASE NOTE My NEW GCSE (9-1) CHEMISTRY REVISION SUMMARIES for Y10 2016-2017 onwards

    AQA GCSE Chemistry 8462  1st Paper (Topics 1-5, Combined Science Trilogy Chemistry 1 Topics 8-12)

    AQA GCSE Chemistry 8462 2nd Paper (Topics 6-10, Combined Science Trilogy Chemistry 2 Topics 13-17)

    Edexcel GCSE (9-1) Chemistry 1st Paper  (Topics 1-5 & Combined Science Chemistry 1 Topics 1-4)

    Edexcel GCSE (9-1) Chemistry 2nd Paper (Topics 1, 6-9 & Combined Science Chemistry 2 Topics 1, 6-8)

    OCR (9-1) Gateway Science GCSE Chemistry A 1st Paper (Topics C1-3 & Combined Science A chemistry 1 Topics C1-3)

    OCR (9-1) Gateway Science GCSE Chemistry A 2nd Paper (Topics C4-6 & Combined Science A chemistry 1 Topics C4-6)

    OCR (9-1) 21st Century Science GCSE Chemistry B Chapters C1-3 (Chapters C1-3, GCSE Combined Science B chemistry)

    OCR (9-1) 21st Century Science GCSE Chemistry B Chapters C4-6 (Chapters C4-6, GCSE Combined Science B chemistry)

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