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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 16
F71%

A student wants to obtain pure water from sea water. Which process should the student use, and why?

[1]
A

Filtration, because the dissolved salt is left behind in the filter paper

B

Crystallisation, because the water evaporates and leaves the salt behind

C

Simple distillation, because the water evaporates and is then condensed

D

Chromatography, because the water travels further up the paper than the salt

Markscheme

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

40 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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