Purifying water 0.0 / 5 ? ChemistryWater hardness and solubilityGCSEAQA Created by: AVD1302Created on: 05-04-14 18:55 10792831564 Across 1. What is the name of the layer formed around a kettle with hard water? (5) 4. This is where most of our drinking water comes from (10) 5. This process removes temporary hardness (7) 6. This experiment is used to compare hardness of water samples (9) 9. This addition removes both temporary and permanent hardness (11) 10. This ion causes water hardness (9) Down 2. This method produces totally pure water with nothing in it (12) 3. This is sometimes added to water and improves dental conditions (8) 7. The water first passes through a..........to remove large objects (10) 8. This chemical is added at the final stage of water purification (8)
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