aqa additional chemistry
Chemistry Unit 2
C2.1 - Structure and Bonding
C2.2 - How the structure influences the properties and uses of substances
C2.3 - Atomic structure, analysis and quantitative chemistry
C2.4 - Rates of reaction
C2.5 - Exothermic and endothermic chemical reactions
C2.6 - Acids, bases and salts
C2.7 - Electrolysis
C2.1 - Structure and Bonding
C2.2 - How the structure influences the properties and uses of substances
C2.3 - Atomic structure, analysis and quantitative chemistry
C2.4 - Rates of reaction
C2.5 - Exothermic and endothermic chemical reactions
C2.6 - Acids, bases and salts
C2.7 - Electrolysis
G&T 6Mark questions
1. Explain how an ionic compound forms.
2. Compare the structures of diamond and graphite.
3. Describe the giant structure seen in metals.
4. Graphite is used for the contacts in electric motors because it conducts electricity and is soft and slipper. Explain in terms of structure and bonding, why graphite has these properties.
5. Compare the structure and properties of giant ionic structures including ionic solid, molten ionic compound and ionic compound in solution.
6. Explain why copper, like many other metals, has a high melting point.
7. Compare the structure and uses of thermo softening and thermosetting plastics.
8. Evaluate the use of using modern instrumental analysis to monitor pollution in the environment.
9. Explain how chromatography can be used to identify unknown substances.
10. Outline how gas chromatography can be used to separate substances.
11. Describe how a mass spectrometer can be used to measure the molecular masses of substances.
12. Describe how the rate of a reaction can be measured.
13. Describe a method to make copper sulfate crystals from copper oxide and dilute sulfuric acid.
14. Describe the effect of surface area on the rate of a reaction.
15. Describe the effect of concentration on the rate of a reaction.
16. Describe the effect of temperature on the rate of a reaction.
17. Describe the effect of catalysts on the rate of a reaction.
18. Evaluate the use of catalysts in chemical reactions.
19. Compare, using examples, endothermic and exothermic reactions.
20. Outline, using half equations, the electrolysis of brine.
21. Outline, using half equations, the electrolysis of molten lead bromide.
22. Outline, using half equations, the electrolysis of copper bromide solution.
23. Explain, as fully as you can, how aluminium and carbon dioxide are formed from the electrolysis of aluminium oxide.
24. Outline the extraction of aluminium by electrolysis.
25. Describe what electroplating is and consider the reasons for electroplating objects.
2. Compare the structures of diamond and graphite.
3. Describe the giant structure seen in metals.
4. Graphite is used for the contacts in electric motors because it conducts electricity and is soft and slipper. Explain in terms of structure and bonding, why graphite has these properties.
5. Compare the structure and properties of giant ionic structures including ionic solid, molten ionic compound and ionic compound in solution.
6. Explain why copper, like many other metals, has a high melting point.
7. Compare the structure and uses of thermo softening and thermosetting plastics.
8. Evaluate the use of using modern instrumental analysis to monitor pollution in the environment.
9. Explain how chromatography can be used to identify unknown substances.
10. Outline how gas chromatography can be used to separate substances.
11. Describe how a mass spectrometer can be used to measure the molecular masses of substances.
12. Describe how the rate of a reaction can be measured.
13. Describe a method to make copper sulfate crystals from copper oxide and dilute sulfuric acid.
14. Describe the effect of surface area on the rate of a reaction.
15. Describe the effect of concentration on the rate of a reaction.
16. Describe the effect of temperature on the rate of a reaction.
17. Describe the effect of catalysts on the rate of a reaction.
18. Evaluate the use of catalysts in chemical reactions.
19. Compare, using examples, endothermic and exothermic reactions.
20. Outline, using half equations, the electrolysis of brine.
21. Outline, using half equations, the electrolysis of molten lead bromide.
22. Outline, using half equations, the electrolysis of copper bromide solution.
23. Explain, as fully as you can, how aluminium and carbon dioxide are formed from the electrolysis of aluminium oxide.
24. Outline the extraction of aluminium by electrolysis.
25. Describe what electroplating is and consider the reasons for electroplating objects.