Tusomesasa.

State three disadvantages of using hard water.(3 marks)

Suggested resposponses

a.  Wastes soap;

b.  Stains white clothes. The soap precipitates out Ca2+ and Mg2+ as scum which form stains on the clothes;

C.  Deposition of fur/scale (calcium carbonate) in kettles, pipes and boilers. This reduces efficiency in boilers, and may make hot water pipes to burst;