Across
- 3. Used of ...... to remove tastes and odours.
- 4. There are ...... tests for the presence of water.
- 6. The clean water is placed in a reservoir or in a tank that could keep the water clean and safe.
- 10. When ...... melting point will decrease.
- 12. ....... is added to kill bacteria and microorganisms.
- 13. White anhydrous copper(II) sulfate turns ...... in the presence of water.
Down
- 1. Blue anhydrous cobalt(II) chloride turns ........ in the presence of water.
- 2. Distilled ..... is water that has been boiled into vapour and condensed back into liquid in a separate container.
- 3. Chemicals are added to make small suspended particles stick together.
- 5. Distilled water is used in practical chemistry because it contains fewer ...... impurities.
- 7. ...... water is not pure.
- 8. Dissolved ...... are beneficial for aquatic life.
- 9. Underground water is the water found underground in the ...... and spaces in soil and rocks.
- 11. ....... water melts at 0°C and boils at 100°C.
- 13. ...... point will increase when impure.
