Give an equation for the removal of permanent hardness in water.

Give balanced equations to show how - Permanent hardness in water can be removed by addition of washing soda

Hardness of Water

The one that is NOT suitable for the removal permanent hardness of water is:

In comparison to the zeolite process for the removal of permanent hardness, the synthetic resins method is

Give reasons for the following: Washing soda can be used to remove both temporary and permanent hardness in water.

What are the causes for Permanent hardness

25mL samples of distiled water, tap water and boiled water required, respectively, 1mL, 13mL and 5mL of soap solution to form a permanent lather. The ratio of temporary to permanent hardness in the tap water is

What causes the temporary and permanent hardness of water ?

Name a process which can remove both temporary and permanent hardness of the water.

Which anions produce permanent hardness in water?