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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 25

A sealed container holds only carbon dioxide gas, CO₂. Some oxygen gas, O₂, is then added to the container. The two gases do not react with each other.

Explain how the ratio of carbon atoms to oxygen atoms changes, if at all, in each carbon dioxide molecule and in the container as a whole.

[3]
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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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