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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 1
F69%

A student has a mixture of sand and sodium chloride. Which sequence of processes gives a pure, dry sample of sodium chloride from this mixture?

[1]
A

Add water, filter, then crystallise the filtrate

B

Add water, crystallise, then filter the solution

C

Add water, distil, then filter the distillate

D

Add water, filter, then crystallise the residue

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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