AQA GCSE Combined Science: Trilogy Chemistry Paper 1 (Higher), 2019
Every question from AQA GCSE Combined Science: Trilogy Chemistry Paper 1 (Higher), 2019: 6 questions, 67 marks, each with its mark scheme and topic.
- Question 1 9 marks
Determine the reactivity order of calcium, magnesium, zinc and copper with hydrochloric acid, identify control and independent variables, predict beryllium's reactivity from the periodic table, and calculate concentration in g per dm³.
Chemistry · C4: Chemical Changes · C1: Atomic Structure and the Periodic Table · C3: Quantitative Chemistry
- Question 2 14 marks
Answer a set of short and extended questions about ammonium nitrate salts, acids and alkalis, pH change, percentage composition, and planning an investigation of temperature change when ammonium nitrate dissolves in water.
Chemistry · Required Practicals · C3: Quantitative Chemistry · C4: Chemical Changes · C5: Energy Changes · Chemistry Required Practicals
- Question 3 8 marks
Answer four chemistry questions about oxygen involving activation energy on an energy profile, overall energy change from a reaction profile, covalent bonding in an oxygen molecule, and bond energy calculations for hydrogen peroxide decomposition.
Chemistry · C1: Atomic Structure and the Periodic Table · C2: Bonding, Structure and the Properties of Matter · C5: Energy Changes
- Question 4 11 marks
Answer a set of short questions about the periodic table, including early element arrangement, Mendeleev’s table, trends in halogen boiling points, noble gas reactivity, and calculating the number of atoms in 1 g of argon.
Chemistry · C1: Atomic Structure and the Periodic Table · C2: Bonding, Structure and the Properties of Matter · C3: Quantitative Chemistry
- Question 5 11 marks
Answer a set of questions about electrolysis, including why it is used to extract some metals, the substances in the molten mixture for aluminium extraction, half-equations for copper chloride electrolysis, reasons for differences in deposited mass, and calculations from graphs of mass deposited over time.
Chemistry · C4: Chemical Changes · C3: Quantitative Chemistry
- Question 6 14 marks
Answer questions about sodium reacting with chlorine, including a balanced equation, observations of the reaction, why sodium is less reactive than potassium, and a comparison of bonding and structure in sodium chloride and hydrogen chloride.
Chemistry · C1: Atomic Structure and the Periodic Table · C2: Bonding, Structure and the Properties of Matter · C4: Chemical Changes