Chemistry 9701/11 Oct Nov 2021 | Cambridge AS Level Past Papers With Mark Scheme

1. Calculation of the relative atomic mass of neon from its isotopic mass and relative abundances.
2. Identification of the gas produced during the decomposition of ammonium nitrate.
3. Comparison of the ionisation energies of elements such as carbon, nitrogen, phosphorus, and silicon.
4. Determination of the electronic configuration of an ion based on its relationship with krypton.
5. Understanding the types of molecular interactions, such as ion-dipole interactions, between water molecules and metal cations in aqueous solutions.
6. Analysis of the deviation from ideal gas behavior, specifically identifying gases that show the greatest deviation under room conditions.
7. Explanation of changes in temperature during neutralization reactions and how they relate to the enthalpy change of neutralization.
8. Understanding the effect of temperature changes on equilibrium, specifically regarding the decomposition of H2 and I2.
9. Knowledge of the Boltzmann distribution and how adding a catalyst affects activation energy.
10. Understanding the principles of combustion and oxidation reactions, with applications in halogen reactions and the use of bond enthalpies.