Hard water gets softened on mixing with a solution of washing soda
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The hard water contain the chloride and sulphate salts of calcium and magnesium In dissolved state to soften the hard water solution of baking soda added added to it this result in chemical reaction to form the precipitate of insoluble carbonate salts to get of calcium and magnesium in dissolved salts of calcium and magnesium goes out in form of kasavatecarbonate and short word what is soft and the word equation is as follows calcium chloride + sodium carbonate to form calcium carbonate + sodium chloride
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