explain how temporary and permanent hardness of water is removed ?
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Hard water contains dessolved magnesium and calcium ions. These make it more difficult for a water to form a lather with soap. Temporary hardness is caused by dissolved
calcium hydrogencarbonate(which is removed by boiling) permanent hardness is caused by dissolved calcium sulfate (which is not removed by boiling).
calcium hydrogencarbonate(which is removed by boiling) permanent hardness is caused by dissolved calcium sulfate (which is not removed by boiling).
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