Question

Boiling removes the ______hardness of water. ​

Answer 1

Answer:

Temporary

Explanation-

Boiling the water causes the precipitation of solid calcium carbonate or solid magnesium carbonate. This removes the calcium ions or magnesium ions from the water, and so removes the hardness. Therefore, hardness due to hydrogencarbonates is said to be temporary.

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Answer 2

Answer:

permanent

Explanation:

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