1. Review of Chemical Principles -- 2. Soil Solids: Composition and Structure -- 3. Ion Exchange -- 4. Chemisorption and Precipitation of Inorganic Ions -- 5. Soil Acidity -- 6. Mineral Weathering and Formation -- 7. Oxidation-Reduction Reactions -- 8. Salt-Affected and Swelling Soils -- 9. Trace and Toxic Elements in Soils -- 10. Organic Pollutants in Soils -- Useful Constants and Unit Conversions in Chemistry.