Chemistry 9701/11 Oct Nov 2017 | Cambridge AS Level Past Papers With Mark Scheme

### 1. Chemical Bonding and Structure:
- Identifying the empirical formula of compounds, and understanding coordination numbers and lattice structures.
- Bond angles and molecular shapes of compounds like SiCl₄ and PCl₃.

### 2. Gas Laws and Thermodynamics:
- Applying the ideal gas law to calculate properties like pressure, volume, and temperature of gases.
- Understanding enthalpy changes in reactions such as the formation of sulfur oxides.

### 3. Electrochemistry:
- Understanding redox reactions and the behavior of substances in lead-acid batteries.
- Analyzing dynamic equilibria and determining equilibrium constants (Kp) for gaseous reactions.

### 4. Periodic Trends and Group Properties:
- Trends in ionization energy and melting points of elements in Groups 2 and 17.
- Behavior of elements like calcium, magnesium, and sulfur in chemical reactions.

### 5. Organic Chemistry:
- Identifying reaction types such as nucleophilic substitution, addition, and polymerization.
- Mechanisms involved in the reactions of aldehydes, alkenes, and alcohols.

### 6. Molecular Interactions:
- Understanding how temperature and pressure affect the equilibrium and reaction rates.
- Interpreting the behavior of molecules in reactions like hydrogen iodide dissociation and the reaction pathway diagrams.