CHEMISTRY · Subjective · ICSE · Chemistry · Water · Water
Problem
Explain the following.
- Industry normally requires water which has been softened.
- Hard water is good for the promotion of healthy bones and teeth.
- Hard water causes kettles to fur. This 'fur' can be removed by using a dilute acid.
- Hard water wastes soap.
- Hard water can coat lead pipes and reduce the possibility of lead poisoning.