Question

define hard and soft water ...?

Answer 1

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.

Answer 2

Hard water :- The water contain large amount of scum with soap .

Soft water :- The water contain large amount of latter with soap.