Hard water
- Created by: closey2000
- Created on: 23-04-16 13:29
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- Hard water
- Formed when magnesium and calcium ions dissolve in water
- Rivers reservoirs as rocks have magnesium and calcium ions
- Permanent
- Stays hard when boiled
- Hard water reacts with soap to form scum
- Disadvantage is costs more and have to boil for longer
- Formed when magnesium and calcium ions dissolve in water
- more soup produces lather
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