Across
- 2. Element Cu
- 4. Colour of a strong acid in universal indicator
- 6. pH of a strong acid
- 9. Acid + Base -> ____ + Water
- 10. Element Pb
- 11. Element H
- 12. Element Ar
- 13. Element He
- 16. Acid + ______ -> Salt + Water
- 18. First layer of the earth
- 19. pH of water
- 20. We can speed up a reaction by increasing this
- 22. The process of removing salt from water
- 23. Acid + ______ - > Salt + Hydrogen
- 24. Colour of water in universal indicator
Down
- 1. Element Fe
- 3. Colour of a strong alkali in universal indicator
- 5. pH of a strong alkali
- 7. Acid + _________ -> Salt + Water + Carbon Dioxide
- 8. Compound CO2
- 14. Second layer of the Earth
- 15. Compound H20
- 17. Reaction which gives out heat
- 21. Reaction which takes in heat