User:King Matthew chidiebere

TYPES OF WATER (chemistry) Water is by far, the most abundant substance in plant and animal tissue as well as the world around us.It is higher in many growing plants, over 80% of the earth's surface is covered by water. SOURCES OF WATER There are various sources of water, these include Rain River water Spring water Stream water Sea water Lake water e.t.C Rain water is the purest form of natural water. It is formed as a result of the condensation of water vapour in the atmosphere River water,Lake Water and Sea water contained at lot of dissolved air,mineral salt,bacteria and organic remains. These water have to specifically purified before they can be used for drinking. TYPES OF WATER We have two major types of water 1. Hard water 2. Soft water

HARD WATER: hard water is any water containing an appreciable quantity of dissolved minerals or salt especially calcium and magnesium minerals. That is calcium tetraoxosulphate,calcium,hydrogentrioxocarbonate(VI)and magnesium tetraoxosulphate(vi). Hard water will not form lather easily with soap. The insoluble calcium and magnesium salt form an unpleasant sum with sticks to clothes is difficult to rinse away. Hard water is wasteful, as a large amount of soap has to be used in removing the calcium and magnesium ions. TYPES OF HARDNESS OF WATER 1.temporary hardness 2.permanent hardness Temporary hardness is caused by the presence of dissolved calcium hydrogen trioxocarbonate(iv) CA(HCO3)2 which decomposes on heating, hence temporary hardness of water can be easily removed by boiling. The calcium trioxocarbonate (IV)caco3 formed is insoluble and this beings the calcium ions out of solutions and soap is added to the water,there will be formation of lather.