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

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Question 10
H

The figure represents part of the structure of silicon dioxide.

Figure: Part of the structure of silicon dioxide

image

a.

Use the figure to explain why silicon dioxide has a very high melting point.

[3]
b.

Solid silicon dioxide does not conduct electricity. Suggest one reason why.

[1]
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

42 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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