AQA GCSE Combined Science: Trilogy Chemistry Paper 2 (Foundation), June 2025
Every question from AQA GCSE Combined Science: Trilogy Chemistry Paper 2 (Foundation), June 2025 (8464): 6 questions, 70 marks, each with its mark scheme and topic.
- Question 1 11 marks
Answer questions about the formation, composition, and fractions of crude oil, including data comparison, a volume percentage calculation, and bar chart completion.
Chemistry · C7: Organic Chemistry
- Question 2 14 marks
Analyze an investigation measuring the rate of reaction between calcium carbonate and hydrochloric acid by gas syringe, including reading measurements, tabulating data, calculating mean rate, and collision theory.
Chemistry · C6: The Rate and Extent of Chemical Change · C8: Chemical Analysis
- Question 3 10 marks
Answer questions on screenwash formulations, atomic composition, combustion products, balancing equations, testing for hydrogen, climate change effects, and reversible reactions of cobalt chloride.
Chemistry · C1: Atomic Structure and the Periodic Table · C3: Quantitative Chemistry · C6: The Rate and Extent of Chemical Change · C7: Organic Chemistry · C8: Chemical Analysis · C9: Chemistry of the Atmosphere
- Question 4 14 marks
Answer questions on potable water, waste water treatment, comparing poly(propene) and wool, recycling, and the cracking and testing of alkenes.
Chemistry · C10: Using Resources · C7: Organic Chemistry
- Question 5 7 marks
Complete the formula for dodecane, evaluate the experimental method for measuring its viscosity, extrapolate data on a graph to predict flow time at 75 °C, and explain how temperature affects viscosity.
Chemistry · C7: Organic Chemistry
- Question 6 14 marks
Describe the test for oxygen, explain how the Earth's atmosphere evolved from early times to today, and describe the production, effects, and reduction of methane and sulfur dioxide emissions.
Chemistry · C8: Chemical Analysis · C9: Chemistry of the Atmosphere