A review of the molecular orbitals topic covering molecular orbital formation, molecular orbital diagrams, hybridisation, and colour of organic compounds.

A review of the whole electromagnetic radiation topic. Electromagnetic Radiation covers the electromagnetic spectrum, energy calculations, and emission and absorption spectra

A review of the whole Polymers topic.

A review of the whole Fertilisers topic.

A review of the whole Metals topic.

A review of the fats, oils, soaps and emulsifiers for Higher chemistry unit 2.

A review of the systematic organic chemistry required for Higher chemistry unit 2: Nature’s Chemistry.

A review of the whole oxidising and reducing agent topic. Oxidising and reducing agents covers redox reactions, balancing ion-electron equations, identifying oxidising and reducing agents from redox equations, uses of oxidising and reducing agents, and redox titrations.