Pearson Edexcel International GCSE (9–1) · CHEMISTRY · Section
Carbon dioxide and global warming: the greenhouse effect
19 practice questions
Practice questions
1–3 of 3 · Hard
Question 1
2 marks · Hard
Answer and see the solution →Explain two reasons why an increase in the concentration of carbon dioxide in the atmosphere could lead to changes in Earth's climate.
Question 2
5 marks · Hard
Answer and see the solution →A student heats a sample of iron(II) carbonate to investigate the formation of carbon dioxide gas.
(a)[2 marks]Write the balanced chemical equation, including state symbols, for the thermal decomposition of iron(II) carbonate.
(b)[1 mark]State the type of reaction taking place.
(c)[1 mark]Describe one observation the student would make as the reaction occurs.
(d)[1 mark]Name the gas formed in this reaction.
Question 3
2 marks · Hard
Answer and see the solution →Explain why carbon dioxide, but not nitrogen, can act as a greenhouse gas.