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2.2 How bonding and structure are related to the properties of substances

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Question 28

A student tests material X, which is either an ionic compound or a giant covalent substance. The results are shown in the table.

State of material XElectrical conductivity
Solid at room temperatureDoes not conduct electricity
MoltenDoes not conduct electricity

The student concludes that material X is ionic because it does not conduct electricity when solid.

Suggest whether the student's conclusion is correct. Explain your answer.

[3]
Markscheme

2.2 How bonding and structure are related to the properties of substances Questions

  1. GCSE
  2. /Chemistry
  3. /2.2 How bonding and structure are related to the properties of substances

84 exam-style questions on AQA GCSE Chemistry 2.2 How bonding and structure are related to the properties of substances, covering 2.2.1a The three states of matter, 2.2.1b Limitations of the simple particle model, 2.2.2 State symbols in chemical equations, 2.2.3 Properties of ionic compounds, 2.2.4 Properties of small molecules, 2.2.5 Polymers, 2.2.6 Giant covalent structures, 2.2.7 Properties of metals and alloys, and 2.2.8 Metals as conductors. Each one has a worked solution and a mark scheme showing where the marks go.

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