Chemistry, asked by Shr45778, 2 months ago

Why presence of calcium bicarbonate in water give rise to temporary hardness in water but presence of sodium bicarbonate does not.

Answers

Answered by PrabhKahlon

Temporary hardness is due to thepresence of calcium hydrogencarbonate Ca(HCO3)2(aq) and magnesium hydrogencarbonate Mg(HCO3)2(aq). ... This removes the calcium ions or magnesium ions from the water, and so removes the hardness. Therefore,hardness due to hydrogencarbonates issaid to be temporary.

Answered by sandeepkamboj595

Explanation:

Temporary hardness is due to the presence of calcium hydrogencarbonate Ca(HCO3)2(aq) and magnesium hydrogencarbonate Mg(HCO3)2(aq). ... 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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