Question 1
What is the systematic name of the ester CH₃CH₂COOCH₂CH₂CH₂CH₃?
How to answer the open-ended questions
Section 2 includes two open-ended questions worth 3 marks each. There is no single right answer: you choose the chemistry you know and use it to comment on a situation.
| How many | Two, in Section 2 |
|---|---|
| Marks | 3 each |
| Asks you to | Use your knowledge of chemistry to comment |
| Credit | For the chemistry you show |
Choosing what to write
- Read the stimulus and list the chemistry it touches: bonding, reactions, rates, energy, the structure of a molecule, how you would test something.
- Pick two or three ideas you understand well rather than many you can only name.
- Explain each one: say what happens and why, with the correct terms, a word equation or a diagram where it helps.
What earns the marks
The marks go to the chemistry you show and how well you explain it. A short answer that explains one idea fully can be worth more than a long list of facts. Mia reads your answer against the points a good answer could make and tells you which your answer shows and what to add next.
Try 2 questions
Question 2
How do London dispersion forces arise?
Next step
Questions people ask
How many open-ended questions are in Higher Chemistry?
Two, in Section 2, worth 3 marks each.
How long should an open-ended answer be?
Long enough to explain two or three pieces of chemistry clearly. Quality of explanation counts more than length.