AQA GCSE Combined Science: Trilogy Chemistry Paper 2 (Foundation), 2021
Every question from AQA GCSE Combined Science: Trilogy Chemistry Paper 2 (Foundation), 2021: 7 questions, 70 marks, each with its mark scheme and topic.
- Question 1 11 marks
This question tests knowledge of reversible reactions, properties of substances, and water treatment processes including filtration, sterilisation, and the classification of substances.
Chemistry · C6: The Rate and Extent of Chemical Change · C8: Chemical Analysis · C10: Using Resources
- Question 2 10 marks
Analyze data on car energy sources and nitrogen dioxide concentrations, perform calculations, and identify properties of catalysts and resources.
Chemistry · C6: The Rate and Extent of Chemical Change · C8: Chemical Analysis · C9: Chemistry of the Atmosphere · C10: Using Resources
- Question 3 9 marks
Analyze the effects of climate change, describe and calculate trends in atmospheric carbon dioxide levels from a graph, and predict future levels.
Chemistry · C9: Chemistry of the Atmosphere
- Question 4 9 marks
Analyze the evolution of Earth's atmosphere, compare it with the atmosphere of Mars, and perform a calculation based on atmospheric gas percentages.
Chemistry · C9: Chemistry of the Atmosphere
- Question 5 10 marks
This multi-part question assesses knowledge of Earth's resources, including interpreting population/production graphs, calculating energy savings from recycling, identifying environmental impacts of sulfur dioxide, calculating mass percentages, matching resource management processes, and ordering life cycle assessment stages.
Chemistry · C10: Using Resources
- Question 6 10 marks
Analyze an investigation into the reaction between magnesium and hydrochloric acid, including identifying variables, plotting data, interpreting reaction rates, and explaining the effect of temperature on reaction rate using collision theory.
Chemistry · C6: The Rate and Extent of Chemical Change
- Question 7 11 marks
Answer a series of questions about crude oil, including its formation, properties of alkanes, a comparison of methane and hexane, cracking of decane, and the test for alkenes.
Chemistry · C7: Organic Chemistry