Oxygen. Oxides, grade 8
Redox reactions, grade 8
General characteristics and how metals formed, grade 8
Structure, nomenclature, and classification of acids
Nomenclature and classification of oxides.
Chemical properties of bases
Salts: composition, nomenclature, classification, methods of preparation
Nitrogen: properties and applications. Ammonia: chemical and physical properties Grade 9
Phosphorus: Allotropy of phosphorus. Phosphorus oxide. Grade 9
Phosphorus. Phosphor lamp and matches
Aluminium, aluminium properties. amphoteric oxide and aluminium hydroxide. Grade 9