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GROUP 1

its from cse 3 and it is group 1

Devanand1
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GROUP 1

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  1. REMOVAL OF HARDNESS OF WATER • Removal of temporary hardness:. Temporary hardness can be removed by boiling • Mg(HCO3)2 ----> MgCO3 + H2O • Removal of permanent hardness: Permanent hardness can be removed by soften metals like Na,NH3 ,------. • CaCl2 + Na2CO3 ------>CaCO3 + 2NaCl

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