Question

types of hardness in water.

Answer 1

There are two types of hard water.
   1. Temporary hard water
   2. Permanent hard water

TEMPORARY HARD WATER

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   "Water that contains bicarbonate of calcium and magnesium or of both is called temporary hard water."   These bicarbonate are soluble in water and produce corresponding ions.

Mg(HCO3)2 è Mg+2 +2HCO3-1

Ca(HCO3)2 è Ca+2 + 2HCO3-1

PERMANENT HARD WATER

    Water that contains chlorides or sulphates of calcium or magnesium or of both is called Permanent water.

CaCl2è Ca+2 + 2Cl-1

MgSO4 è Mg+2 + SO4-2
I hope it will help you

Answer 2

there are two types of hardness in water :

1 . temporary and permanent..