Question

Write an elaborated discussion based on ways to remove hardness of water.
⇒Answer only if you know properly and
⇒ Also plz don't copy paste from google, I want some little info just for my project
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Answer 1

Answer:

to remove the permanent hardness of water

we use washing soda it's chemical name is Na2CO3 also known as Sodium carbonate

hope my answer can help u