AQA GCSE Combined Science: Trilogy Chemistry Paper 2 (Foundation), November 2020
Every question from AQA GCSE Combined Science: Trilogy Chemistry Paper 2 (Foundation), November 2020 (8464): 7 questions, 70 marks, each with its mark scheme and topic.
- Question 1 8 marks
Answer questions on the formation, fractional distillation, structure, bonding, and general formula of alkanes from crude oil, and calculate the decrease in plastic bag usage.
Chemistry · C2: Bonding, Structure and the Properties of Matter · C7: Organic Chemistry · C10: Using Resources
- Question 2 10 marks
Analyze changes in the Earth's atmosphere, causes of carbon dioxide reduction, the greenhouse effect, and impacts of climate change.
Chemistry · C9: Chemistry of the Atmosphere
- Question 3 11 marks
Investigate the mass of dissolved solids in water samples using evaporation, addressing apparatus, experimental errors, means, and proportion calculations.
Chemistry · C10: Using Resources · C3: Quantitative Chemistry
- Question 4 12 marks
Complete questions on the decomposition of hydrogen peroxide including completing a word equation, identifying control variables, reading a gas syringe, plotting a graph, and explaining collision theory effects of temperature.
Chemistry · C1: Atomic Structure and the Periodic Table · C6: The Rate and Extent of Chemical Change
- Question 5 9 marks
Identify mixtures and formulations, match phases in paper chromatography, interpret a chromatogram, and calculate an Rf value.
Chemistry · C8: Chemical Analysis
- Question 6 9 marks
Balance equations and state chemical tests and results for carbon dioxide, hydrogen, and alkenes related to propane and propene.
Chemistry · C1: Atomic Structure and the Periodic Table · C7: Organic Chemistry · C8: Chemical Analysis
- Question 7 11 marks
Describe an improved method to investigate the effect of temperature on reaction rate using the disappearing cross reaction, calculate mean rate from a mass loss graph, and sketch the curve at a higher temperature.
Chemistry · C6: The Rate and Extent of Chemical Change