Question

difference between hard water and soft water
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Answer 1

hard water contains calcium and mafnesium salts which stops soaps from dissolving into them

ex- 2C17H35COONA + CACL2-(C17H35COO)2CA+2NACL

Answer 2

HARD WATER -

1- It contains calcium and magnesium salts in the form of hydrogen carbonate, chloride and sulphate.

2- It does not give lather with soap.

3- Hard water forms precipitate with soap, so unstable for laundry.

4- Produce less bubbles.

5- Have a high pH value.

6- Hard water is better than soft water for drinking.

SOFT WATER - 

1- It is treated water in which the only is sodium.

2- It gives later with soap.

3- Good for laundry use.

4- Produce more bubbles than hard water.

5- Have a low pH value.

6- Soft water is better than hard water for skin use.