Question

How to remove temporary hardness in water without using chemical compound

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Answer 1

Answer:

Temporary hardness of water can be removed by heating the water. water is heated the calcium and magnesium carbonates are precipitated out of the water and collect as residue, the water can then be recollected and is free of these minerals.

Explanation:

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Answer 2

Temporary Hardness of Water:

In this case, the hardness in water can be removed by boiling the water. When we boil water the soluble salts of Mg(HCO3)2 is converted to Mg(OH)2 which is insoluble and hence gets precipitated and is removed.