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

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Question 4

A manufacturer is choosing a material for the inside of a furnace that operates at 1700 ∘C1700\ ^\circ\text{C}1700 ∘C.

Material P consists of atoms joined by covalent bonds in a continuous repeating network.

MaterialMelting point in ∘C^\circ\text{C}∘C
P2250
Q1500

Use the information in the table and your knowledge of structure and bonding to explain why material P, rather than material Q, should be used for the inside of the furnace.

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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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