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Question
State the disadvantages of using hard water.
Solution
- It is more difficult to form lather with soap.
- Scum may form in a reaction with soap, wasting the soap.
- Carbonates of calcium and magnesium form inside kettles. This wastes energy whenever you boil a kettle.
- Hot water pipes 'fur up'. Carbonates of calcium and magnesium start to coat the inside of pipes which can eventually get blocked.
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