what is permanent hardness and temporary hardness of water and write it's equations .??
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Temporary hardness is due to the soluble salts of magnesium and calcium in the form of hydrogen carbonates. and this hardness can be removed from water by boiling. Permanent hardness of water is due to the presence of soluble salts of calcium and magnesium in the form of chlorides in water.
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acceleration is the rate of change of the velocity of an object with respect to time.
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