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9.1 The composition and evolution of the Earth's atmosphere

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Question 23
H

In photosynthesis, 6 molecules of carbon dioxide produce 6 molecules of oxygen. A plant uses 3.0 dm3 of carbon dioxide. What volume of oxygen is produced, measured at the same temperature and pressure?

[1]
A

3.0 dm33.0\ \text{dm}^33.0 dm3

B

6.0 dm36.0\ \text{dm}^36.0 dm3

C

9.0 dm39.0\ \text{dm}^39.0 dm3

D

18.0 dm318.0\ \text{dm}^318.0 dm3

Markscheme

9.1 The composition and evolution of the Earth's atmosphere Questions

  1. GCSE
  2. /Chemistry
  3. /9.1 The composition and evolution of the Earth's atmosphere

40 exam-style questions on AQA GCSE Chemistry 9.1 The composition and evolution of the Earth's atmosphere, covering 9.1.1 The proportions of different gases in the atmosphere, 9.1.2 The Earth's early atmosphere, 9.1.3 How oxygen increased, and 9.1.4 How carbon dioxide decreased. Each one has a worked solution and a mark scheme showing where the marks go.

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