Chemistry 9701/13 May June 2022 | Cambridge AS Level Past Papers With Mark Scheme

1. Understanding trends in solubility of Group 2 hydroxides and calculating solubility products (Ksp).
2. Explanation of complex ions, their structures, and hybridization, including [Be(OH)4]2- and related shapes.
3. Discussion on transition elements' ability to form complex ions and their associated properties such as coordination numbers and polarities.
4. Calculating and interpreting stability constants (Kstab) for metal-ligand complexes, including nickel with different ligands.
5. Explanation of transition elements' variable oxidation states, their colored compounds, and bonding in compounds like [Cu(H2O)6]2+.
6. Exploration of the effects of temperature on equilibrium, using the example of SO2 and O2 reacting to form SO3 and calculations involving Gibbs free energy (∆G).