Week 18 Year 10- metallic bonding
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Last updated about 2 years ago
8 questions
4
Explain why diamond has a very high melting point (4 marks)
Explain why diamond has a very high melting point (4 marks)
1
Hydrogen chloride is formed in the reaction between hydrogen and chlorine. The equation for the reaction is H2 + Cl2 รจ 2HCl(a) Each molecule in this equation contains the same type of bonding. Name this type of bonding (1 mark)
Hydrogen chloride is formed in the reaction between hydrogen and chlorine. The equation for the reaction is H2 + Cl2 รจ 2HCl
(a) Each molecule in this equation contains the same type of bonding. Name this type of bonding (1 mark)
1
The bonding in a hydrogen molecule is strong. Explain why the boiling point of hydrogen is low (2 marks)
The bonding in a hydrogen molecule is strong. Explain why the boiling point of hydrogen is low (2 marks)
1
(a)Explain why silicon dioxide has a high melting point. (2 marks)
(a)Explain why silicon dioxide has a high melting point. (2 marks)
1
(a)Suggest why the melting point of silicon dioxide is higher than the melting point of sodium chloride. (1 mark)
(a)Suggest why the melting point of silicon dioxide is higher than the melting point of sodium chloride. (1 mark)
1
(a)State why sodium chloride conducts electricity when molten. (1 mark)
(a)State why sodium chloride conducts electricity when molten. (1 mark)
1
Give the definition of metallic bonding ( 1 mark)
Give the definition of metallic bonding ( 1 mark)
1
Explain why metals can conduct electricity and are malleable? (2 marks)
Explain why metals can conduct electricity and are malleable? (2 marks)