AQA GCSE Combined Science: Trilogy Chemistry Paper 2 (Foundation), 2023
Every question from AQA GCSE Combined Science: Trilogy Chemistry Paper 2 (Foundation), 2023: 6 questions, 70 marks, each with its mark scheme and topic.
- Question 1 10 marks
Identify properties of crude oil, its formation, separation by fractional distillation, cracking products, gas tests, and calculate percentage composition.
Chemistry · C7: Organic Chemistry · C8: Chemical Analysis · C10: Using Resources
- Question 2 15 marks
Analyze the composition and evolution of the Earth's atmosphere, including greenhouse gases, human impact through deforestation and emissions, and resource management strategies.
Chemistry · Biology · C9: Chemistry of the Atmosphere · C10: Using Resources · B4: Bioenergetics
- Question 3 12 marks
Analyze water samples for dissolved solids, identify methods for producing potable water, and evaluate the impact of fluoridation using graphical data.
Chemistry · C10: Using Resources · C6: The Rate and Extent of Chemical Change · C8: Chemical Analysis
- Question 4 10 marks
Investigate the rate of decomposition of hydrogen peroxide using different catalysts by plotting data and interpreting graphs.
Chemistry · C6: The Rate and Extent of Chemical Change
- Question 5 12 marks
Analyze the combustion of fuels, properties of hydrocarbons, and the environmental impact of resulting atmospheric pollutants including carbon monoxide, particulates, and sulfur dioxide.
Chemistry · C7: Organic Chemistry · C9: Chemistry of the Atmosphere · C8: Chemical Analysis · C2: Bonding, Structure and the Properties of Matter
- Question 6 11 marks
Identify phases in chromatography, explain separation mechanisms, calculate Rf values, and plan a paper chromatography experiment to identify components of black ink.
Chemistry · C8: Chemical Analysis