Acids, Bases and Salts
Acids An acid is a compound which when dissolved in water …
Equilibria
Reversible Reactions is a reaction in which reactants form products and …
Ammonia
Ammonia is a poisonous, colourless gas with a pungent smell. Mainly …
sulphuric acid
Sulfur Sources sulfur By-product of petroleum and natural gas refining Occurs …
The Periodic Table
The Periodic table is a method of classifying elements. Elements are …
Stoichiometry
Valences of each elemental group Group Valency I 1 II 2 …
Chemical energetics
Exothermic reactions reactions which gives out energy the surroundings gain energy …
Pollution
Main pollutants Carbon monoxides from unburnt hydrocarbons, exhaust fumes sulphur dioxide …
Water purification
Uses of water domestic: drinking, cooking, washing, farming etc. industry: irrigation, …
Proteins
Proteins are large molecules made of long chains of amino acids …
Enzymes
Enzymes are globular proteins that serve as biological catalysts. They speed …
Water
The molecule consists of one oxygen atom covalently bonded to two …