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4 marksMixtures and Separations

CSEC Chemistry · January 2019 · Paper 2 · Question 2(b)(iii)

Jamelia's mom mixed curry powder with water, observing a brown mixture similar to chalk and water.

Draw a clearly labelled diagram of the apparatus that could be set up in the school laboratory to separate the mixture of curry powder and water. In your diagram, show the location of the separated components.

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Other parts of this question

  1. 2(a)(i)Define the term 'diffusion'.[2 marks]
  2. 2(a)(ii)Explain how the diffusion of the scent of the curry supports the particulate theory of matter.[2 marks]
  3. 2(a)(iii)Diffusion is a process that can also occur in liquids. State how the arrangement of particles in a liquid differs from that in a solid and a gas.[3 marks]
  4. 2(a)(iv)Apart from diffusion, identify ONE process that supports the particulate theory of matter and state ONE example of such a process.[2 marks]
  5. 2(b)(i)State whether the mixture of curry powder and water is a suspension or colloid.[1 mark]
  6. 2(b)(ii)State the MOST appropriate technique that could be used in a school laboratory to separate this mixture.[1 mark]

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