Two samples of hard water C and D were boiled. When tested with drops of soap, sample D formed lather easily while C did not:- (a)...

Two samples of hard water C and D were boiled. When tested with drops of soap, sample D formed lather easily while C did not:-
(a) Name the possible salt that caused hardness in sample D
(b) Explain how distillation can remove hardness in sample C

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(a) Calcium hydrogen carbonate/Magnesium hydrogen carbonate;
(b) Water boils off and is condensed leaving the salt;

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maurice.mutuku answered the question on October 25, 2019 at 07:15

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