Across
- 2. what colour accours water is added into cobalt(II) chloride?
- 3. inpurity that may be found in tap water?
- 6. what harmful thing might sewage add to water?
- 8. what does it mean if water boils above 100°C?
- 10. what colour does copper(II) sulfate paper change when water is added?
- 11. melting point of pure water?
Down
- 1. what substance in water helps fish to live?
- 4. water type of water used in practical chemistry?presence of water
- 5. what comes from fertilisers that can pollute water?
- 7. impurities why distilled water is used instead of tap water?
- 9. what can plastics in water cause?