English, asked by vishagh, 1 year ago

Permanent hardness of water can be removed by adding

Answers

Answered by Harshit07

Hello friend,
By adding Na2CO3 or by ion exchange.
hope it helps.

Answered by snehitha2

Hi vishagh,

Permanent hardness of water can be removed by adding Washing Soda.
Chemical formula of Washing Soda is Na2CO3 (sodium carbonate).

hope it helps

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