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1.1 The particle model

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Question 8

A science centre display uses one identical solid foam ball to represent each molecule in samples of water vapour and carbon dioxide gas.

Which change would correct one limitation of this model?

[1]
A

Make both types of molecule larger whenever the gas samples are heated.

B

Fill the spaces around both types of molecule with particles of air.

C

Show water molecules as bent and carbon dioxide molecules as straight lines of three atoms.

D

Arrange both types of molecule in fixed, regular rows throughout each gas sample.

Markscheme

1.1 The particle model Questions

  1. GCSE
  2. /Chemistry
  3. /1.1 The particle model

93 exam-style questions on OCR GCSE Chemistry 1.1 The particle model, covering 1.1.1 The particle model and changes of state and 1.1.2 Limitations of the particle model. Each one has a worked solution and a mark scheme showing where the marks go.

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