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1.1 A simple model of the atom, symbols, relative atomic mass, electronic charge and isotopes

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Question 13
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A student has some copper sulfate solution in an evaporating basin. The student wants to obtain dry crystals of copper sulfate from the solution.

Which method should the student use, and what is the reason it works?

[1]
A

Fractional distillation, because copper sulfate and water are collected at different boiling points.

B

Chromatography, because the copper sulfate is split into its elements as the solvent moves.

C

Crystallisation, because removing some water makes the solution saturated so crystals form.

D

Filtration, because the copper sulfate particles are too large to pass through the paper.

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1.1 A simple model of the atom, symbols, relative atomic mass, electronic charge and isotopes Questions

  1. GCSE
  2. /Chemistry
  3. /1.1 A simple model of the atom, symbols, relative atomic mass, electronic charge and isotopes

93 exam-style questions on AQA GCSE Chemistry 1.1 A simple model of the atom, symbols, relative atomic mass, electronic charge and isotopes, covering 1.1.1a Atoms, elements and compounds, 1.1.1b Half equations and ionic equations, 1.1.2 Mixtures, 1.1.3 The development of the model of the atom (common content with physics), 1.1.4 Relative electrical charges of subatomic particles, 1.1.5 Size and mass of atoms, 1.1.6 Relative atomic mass, and 1.1.7 Electronic structure. Each one has a worked solution and a mark scheme showing where the marks go.

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