1. Ideal Gas Law Application – Calculating gas volume and molar mass using the ideal gas equation. 2. Titration and Acid-Base Reactions – Determining the concentration of sodium hydroxide from titration data with ethanedioic acid. 3. Enthalpy Changes and Combustion – Calculating the enthalpy change of combustion of 2-methylpropan-2-ol using bond enthalpy values. 4. Reaction Mechanisms and Nucleophiles – Identifying nucleophiles and drawing electrophilic addition mechanisms for alkenes. 5. Polymer Chemistry and Environmental Impact – Evaluating the disposal challenges of poly(chloroethene) (PVC) incineration. 6. Halogenoalkane Reactivity and Hydrolysis Rates – Comparing hydrolysis rates of different halogenoalkanes using silver nitrate tests.