Topics: Inorganic Chemistry, atomic structure, quantum theory, electromagnetic radiation, light waves, quantum theory of light, photoelectric effect, Einstein's electromagnetic theory, atomic spectra, Bohr's atomic theory, Bohr's postulates, Bohr's assumptions, Bohr's theory, wave mechanics, Quantum numbers, Schroedinger ideas, electronic configuration, Pauli's exclusion principle, Aufbau process, atomic radius, ionization energy, electron affinity, hydrogen, nitrogen, oxygen, phosphorus, sulphur, chlorine, bromine, iodine, sodium, calcium, aluminum, iron, manganese, copper, zinc, nuclear chemistry, radioactivity, nuclear stability, radioactive decay, radioactive nuclide, carbon-14 dating, nuclear transformation, nuclear reactor, nuclear reaction, nuclear fission, atomic bomb, nuclear fussion, hydrogen bomb

Topics: food, vitamins, food poisoning, food contamination, food adulteration, Food Processing, Preservation Operations, African foods, roots, tubers, cereals, legumes, fruits, vegetables, milk, meat, fish, food chemistry, food microbiology, bacteria, fungi, food packaging, food processing, food preservation, food composition, Vitamins, Fat Soluble Vitamins, Water – Soluble Vitamins, retinol, Thiamine, pantothenic Acid, Pyridoxine, folic acid, Ascorbic Acid, vitamin c, Biotin, Choline, Inositol, mineral elements, trace metals, calcium, phosphorus, magnesium, sodium, potassium, Iodine, Iron, Zinc, fluorine, Food Poisoning, Food Poisoning organism

Topics: Soil Mineralogy, soil fertility, soil chemistry, pedology, Soil composition; soil air, soil water, kaolinite, Illite, Smectite, Mixed layer Clays Silica minerals, Iron, aluminum oxides, hydroxide, oxyhydroxides, Differential thermal analysis, X-Ray diffraction analysis, Infrared spectroscopy

Topics: Soil Chemistry, water chemistry, pollution science, soil composition, nitrogen, phosphorus, boron, iron, Manganese, Molybdenum, Ion Exchange Phenomenon, Cation Exchange Capacity, Anion Exchange Capacity, Flocculation, Buffering Capacity, Soil Salinity, Alkalinity, Sodicity, Soil Reaction, Soil Organisms, Fungi, Actinomycetes, bacteria, Algae, Nematodes, Earthworms, Termites, soil organic matter

Topics: English survey, English Novel, Restoration Age, English Literature, Augustan Age, Neo-Classical Age, Romantic Age, English Literature and the Romantic Age, English Literature and the Victorian Age, drama, comedy, tragedy, tragicomedy, elements of drama, plot, dramatic irony, Materialism, Symbolism

Topics: Water Quality Management, Pollution Control, water bodies physical composition, water chemistry, Nutrient Cycles, water biological characteristics, sampling methods, Water Quality Standards, water pollution control, Water Quality Monitoring, Nitrification, Denitrification, Anaerobic ammonium oxidation, Nitrogen mineralisation, Carbon Cycle, Phosphorus Cycle, Iron Cycle, Silica Cycle, Marine Dead Zones, bacteria, protozoa, Manual Sampling, grab sampling, Integrated sampling, Automatic Sampling, Mechanical Samplers, Physical Habitat Assessments, Turbidity, salinity, Total oxidised nitrogen, Total organic nitrogen, Total Kjeldahl nitrogen

Topics: elements, compounds, atomic theory, chemical reaction, atom constituents, chemical symbols, chemical formulae, chemical reactions, chemical equations, electronic configuration, atomic number, mass numbers, nuclear atom, electronic, energy levels, Ion formations, nuclear reactions, radioactivity, nuclear radiations, nuclear fusion, nuclear fission, radioactivity hazards, chemical bonding, electrovalent bonding, Ionic bonding, electrovalent compounds, covalent bonding, covalent compounds, coordinate covalent bonding, dative covalent bonding, metallic bonding, intermolecular bonding, Van der Waal's forces, dipole-dipole attractions, hydrogen bonding, periodic table, periodic law, transition elements, atomic orbital model, principal quantum number, subsidiary quantum number, azimuthal quantum number, magnetic quantum number, spin quantum number, atomic orbital shape, atomic size, ionic radius, ionization energy, electron affinity, electronegativity, mole concept, melting, vaporization, boiling point, evaporation sublimation, heating graphs, cooling graphs, Boyle's law, Charles's law, Avogadro's law, boiling, solid classification, solid properties, molecular solid, metallic solid, Ionic solid, covalent solid, energy changes, heat content, heat of reaction, exothermic reactions, energy level diagrams, standard state, thermochemical equations, entropy, entropy change, free energy, chemical kinetic, rate of a chemical reaction, temperature, gas pressure, catalyst, activation, reaction rate, collision theory, Le Chatelier's principle, Haber process, contact process, salt hydrolysis, buffer solutions, common Ion effect, solubility product, Acid bases, salt, electrolysis, redox reactions, electrolytic conduction, oxidation, reduction, copper purification, electroplating, quantitative hydrolysis, metal corrosion, iron rusting, carbon, carbon allotropes, Diamond graphite, amorphous carbon, combustion reactions, industrial gas chemistry, metals, alloys, chemical industry, heavy chemicals, fine chemicals, fertilizers, plastics, soaps, detergents, pharmaceuticals, Nigerian chemical industry, aromatic compounds, Alicyclic compound, heterocyclic compound, homologous series, functional groups, isomerism, structural isomerism, geometric isomerism, IUPAC Nomenclature of organic compounds, purification methods, distillation, crystallization, chromatography, empirical formula, molecular formular, alkanes, natural gas, petroleum crude oil, benzene, fractional distillation petrol quality, cracking, isomerization, petrochemicals, alkanols, alkanoic acid, alkenoate, fat, oils, amino acid, polymer chemistry, polymerization processes, condensation polymerization, resins, natural polymers, carbohydrates, proteins, synthetic polymers, water pollution

Topics: kinetic theory of matter, diffusion, compounds, experimental techniques, elements, separating mixtures, gels, sols, foams, emulsions, atomic structure, atomic bonding, Ionic bonding, covalent bonding, glasses, ceramics, metallic bonding, Stoichiometry, chemical calculations, relative atomic mass, reacting masses, calculating masses, moles, chemical equations, electricity, electrolysis, electroplating, chemical energetics, fossil fuels, chemical energy, cells, batteries, chemical reactions, enzymes, acid, base, alkalis, salt formation, crystal hydrates, salt solubility, titration, periodic table, Alkali metal, alkaline earth metals, halogens, noble gases, transition elements, metal, metal reactions, metal nitrate decomposition, metal carbonate decomposition, metal oxide decomposition, metal reactivity, metal waste, rusting of iron, air, water, ammonia, artificial fertilizer, water cycle, water hardness, sulfur, sulfur dioxide, sulfuric acid, inorganic carbon chemistry, limestone, carbonates, carbon dioxide, organic chemistry, alkanes, alkenes, Biotechnology, alcohols, Carboxylic acids, soaps, detergents, Condensation polymers, biopolymers, Pharmaceuticals, Experimental chemistry