Edexcel International GCSE Chemistry

Edexcel International GCSE Chemistry States of Matter Exam Questions

Free Edexcel International GCSE Chemistry exam questions on States of Matter, with mark schemes. Covers solids, liquids and gases, changes of state, diffusion and solubility.

States of Matter exam questions

These packs of real past exam questions cover the whole of Section 1: Principles of Chemistry, including States of Matter. Work through every question on this sub-topic, then mark your answers against the mark scheme.

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About Edexcel International GCSE Chemistry States of Matter

This sub-topic covers particle theory.

What you need to know

  • Particle model Arrangement and movement in each state.
  • Changes of state Melting, boiling, condensing and freezing.
  • Diffusion Evidence for moving particles.

Common mistakes in States of Matter

  • Saying particles expand when heated.
  • Confusing evaporation and boiling.

Try two States of Matter exam-style questions

1. Describe the arrangement of particles in a liquid. (2 marks)

Show the mark scheme answer

Close together (1) and randomly arranged, able to move past each other (1).

2. Explain why ammonia and HCl form a ring nearer the HCl end. (1 mark)

Show the mark scheme answer

Ammonia particles are lighter and diffuse faster.

States of Matter FAQs

What does this cover?

Particle theory, changes of state and diffusion.

Which practical links here?

Investigating solubility at different temperatures.