Hard and Soft Water

The water that forms lather easily

• Hard water

• Soft water

Hardness in water is caused by the presence of:

• Sodium chloride

• Sodium carbonate

• Calcium chloride

• Potassium nitrate

Tags

NGSS.HS-PS1-5

Permanent hardness in water is caused by the presence of:

• Calcium bicarbonate

• Magnesium sulphate

• Both of them

• None of them

Hardness of water can be removed by;

• boiling

• distilation

• both

• none

Tick all the advantages of hard water

• Hard water tastes better than soft water.

• Hard water makes our teeth and bones stronger.

• Hard water can easily lather up so we need less soap to wash,

• It forms deposits of insoluble salts on the walls of water pipes and water boilers.