Q11 of 21 Page 18

What are the positives of water softeners?

Some of the benefits of water softeners are:

(a) Cleaner laundry.


(b) No soapy buildup on appliances which increases its lifetime.


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9

State some advantages of hard water.

 10

Why is scum formed when hard water is treated with soap?

 12

State some negative effects of using water softeners.

 13

What is the role of buffer solution in measuring the hardness of water?