Chemistry 9701/12 Oct Nov 2016 | Cambridge AS Level Past Papers With Mark Scheme

1. Gas Laws and Molecular Energy Distributions:
- Understanding the effects of temperature on the distribution of molecular energies in gases.

2. Reaction Energy Profiles:
- Identifying the energy change for a reaction when a catalyst is involved.

3. Sodium Chloride Mass Calculation:
- Determining the mass of sodium in a given mass of sodium chloride.

4. Copper Reactions:
- Identifying the balanced equation for the reaction between copper and nitric acid.

5. Electronic Configuration:
- Determining the electronic configuration of ions like Ni²⁺.

6. Bonding in Aluminium Chloride:
- Understanding the bonding in Al₂Cl₆, identifying ionic and covalent bonding.

7. Hydride Bond Angles:
- Identifying the smallest bond angle in hydrides based on molecular structure.

8. Gas Behavior and Ideal Gas Assumptions:
- Understanding ideal gas behavior under different conditions, including temperature and pressure changes.

9. Calorimetry:
- Calculating the energy released per gram of fuel burnt in a calorimetry experiment.

10. Equilibrium and Kc:
- Determining the equilibrium constant (Kc) for a reaction using equilibrium concentrations.

11. Reaction of Lithium and Nitrogen:
- Understanding the behavior of lithium and nitrogen in a system involving ammonia formation.

12. Ionization Energies and Periodicity:
- Interpreting ionization energy trends and understanding periodic properties like atomic radius.

13. Covalent Compound Formation:
- Identifying elements with the greatest tendency to form covalent compounds.

14. Chlorides and Hydrolysis:
- Understanding the hydrolysis of chlorides and the pH changes that occur.

15. Oxidation States and Chlorine Compounds:
- Identifying the ions formed when chlorine reacts with sodium hydroxide.

16. Thermal Decomposition of Magnesium Nitrate:
- Determining the products of the thermal decomposition of magnesium nitrate.

17. Volatility of Chlorine and Bromine:
- Explaining the difference in volatility between chlorine and bromine based on intermolecular forces.

18. Ammonium Ion Formation:
- Understanding the reaction between water and ammonia to form ammonium ions.

19. Limonene Reaction:
- Identifying the major product of limonene when reacted with hydrogen chloride.

20. Structural Identification and Organic Chemistry:
- Identifying the number of hydrogen atoms in rotundone and other organic compounds.