AQA GCSE Chemistry Chemistry Paper 1 (Higher), November 2020
Every question from AQA GCSE Chemistry Chemistry Paper 1 (Higher), November 2020 (8462): 9 questions, 100 marks, each with its mark scheme and topic.
- Question 1 8 marks
Identify substances with intermolecular forces and compare the structure and bonding of carbon dioxide, magnesium oxide, and silicon dioxide.
Chemistry · C2: Bonding, Structure and the Properties of Matter
- Question 2 11 marks
Answer questions on the properties of transition metals, displacement reactions, planning an investigation to identify metals using hydrochloric acid, and calculating relative atomic mass from isotopic abundances.
Chemistry · Required Practicals · C1: Atomic Structure and the Periodic Table · C4: Chemical Changes · Required Practicals
- Question 3 10 marks
Explain conservation of mass using experimental mass data, outline purification steps for an insoluble salt, and calculate the percentage atom economy to 3 significant figures.
Chemistry · C1: Atomic Structure and the Periodic Table · C3: Quantitative Chemistry
- Question 4 8 marks
Explain observations and predict products for the electrolysis of aqueous copper chromate and potassium iodide solutions.
Chemistry · Required Practicals · C4: Chemical Changes · Required Practicals
- Question 5 8 marks
Answer questions on the development of the atomic model and Mendeleev's periodic table using a timeline of scientific discoveries.
Chemistry · C1: Atomic Structure and the Periodic Table
- Question 6 9 marks
Explain activation energy, determine the limiting reactant in the thermite reaction via mole calculations, complete an ionic displacement equation, and explain redox in terms of electron transfer.
Chemistry · C3: Quantitative Chemistry · C4: Chemical Changes · C5: Energy Changes
- Question 7 12 marks
Analyze reaction profiles, fuel cells, particle models, and calculate the volume of hydrogen gas required for a fuel cell car journey.
Chemistry · C2: Bonding, Structure and the Properties of Matter · C3: Quantitative Chemistry · C5: Energy Changes
- Question 8 16 marks
Explain the trends and properties of halogens and use experimental mass data to determine the mole ratio and balanced equation for the reaction of iron with chlorine.
Chemistry · C1: Atomic Structure and the Periodic Table · C2: Bonding, Structure and the Properties of Matter · C3: Quantitative Chemistry
- Question 9 18 marks
Investigate temperature changes in an endothermic neutralization reaction and perform titration calculations with citric acid and sodium hydroxide.
Chemistry · Required Practicals · Required Practicals · C3: Quantitative Chemistry · C4: Chemical Changes · C5: Energy Changes