Question

Would you able to check if water is hard by using a detergent. Justify ur answer

Answer 1

if the water forms foam then it is soft water if it is hard water soap breaks up ,does not form foam

Answer 2

Unlike soap, they do not react with calcium and magnesium ions present in hard water to form scum. ... This means that detergents can be used in both soft and hard water. Therefore, it cannot be used to check whether the water is hard or not