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Microscale chemistry: the chemistry of thiosulphate ions

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Find out about some interesting chemical reactions of sodium thiosulphate

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Level

16-18 years

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Specification

Wales
- A/AS level
  - WJEC Chemistry
    - Unit 1: THE LANGUAGE OF CHEMISTRY, STRUCTURE OF MATTER AND SIMPLE REACTIONS
      - 1.6 The Periodic Table
        (o) reaction between aqueous Ag⁺ and halide ions followed by dilute aqueous NH₃
    - Unit 3: PHYSICAL AND INORGANIC CHEMISTRY
      - 3.2 Redox reactions
        (c) redox reaction between Cu²⁺ and I⁻ and the determination of the liberated iodine with S₂O₃²⁻

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