Two samples of hard water contain same cations, `Ca^(2+)` & `Mg^(2+)`. One is marked as temporary and the other as permanent. In which respect do they differ?

Explanation

the two samples of water differ with respect to the anions of calcium and magnesium salts present. The sample of water marked as temporary hard water contains bicarbonates of `Ca^(2+) and Mg^(2+)` ions while the sample of water marked as permanent hard water contains chlorides and sulphates of `Ca^(2+) and Mg^(2+)` ions.