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Explain the chemical tests used to identify water by utilizing anhydrous cobalt(II) chloride and anhydrous copper(II) sulfate.

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Cambridge IGCSE Combined Scienceof the environmentCore content

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Explain the chemical tests used to identify water by utilizing anhydrous cobalt(II) chloride and anhydrous copper(II) sulfate

  • This point belongs to Water, especially Water outcomes.
  • You need to be able to explain the chemical tests used to identify water by utilizing anhydrous cobalt(II) chloride and anhydrous copper(II) sulfate.
  • The key ideas to know are Describe and Explain.
  • Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.

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DescribeExplain

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Description

Chemical Tests for Water

Anhydrous cobalt(II) chloride and anhydrous copper(II) sulfate are used to identify the presence of water. Cobalt(II) chloride changes from blue to pink, while copper(II) sulfate changes from white to blue when water is present.

  1. a

    Explain the chemical tests used to identify water using anhydrous cobalt(II) chloride and anhydrous copper(II) sulfate.

    Aim for approximately 4 distinct marking points.

    [4]
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