why is soap not suitable for washing clothes when the water is hard?
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Answered by
57
Because hard water contains magnesium and calcium dissolved in it...... due to which, instead of showing cleaning action and forming foam.......soap reacts with these minerals to form insoluble precipitate called scum...
Answered by
22
in hardwater soap reacts with other elements present in hard water and does not form scum instead of it we can use detergent.
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