What cause permanent hardness of water
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Permanent hardness of water is caused when chlorides and sulfides of calcium and magnesium are dissolved in water. It is known as permanent hardness because it cannot be removed by boiling. To remove permanent hardness the hard water is treated with washing soda.
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I am fine sis what about you ?
Permanent hardness of water is caused when chlorides and sulfides of calcium and magnesium are dissolved in water. It is known as permanent hardness because it cannot be removed by boiling. To remove permanent hardness the hard water is treated with washing soda.
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