Across
- 2. Stomach acid, tested as pH 1 in our lab experiment
- 4. A solution with a pH of 7
- 7. The hazard lable which means poisonous
- 8. What pH stands for
- 9. A substance with a pH of 11 or above
- 13. The substance found in lemons, oranges and limes
- 15. A substance with a pH of 8,9 or 10
- 16. The type of ions that are in all acids
- 17. A very strong household alkali will be labelled corrosive
- 18. An acid/alkali without very much water added, very dangerous
- 19. The type of ions that are in all alkalis
Down
- 1. The scientifc word used to mean it has been watered down
- 3. The colour of a pH14 solution when tested with universal indicator
- 5. A household alkali, should be used at least twice per day
- 6. A liquid with a pH number of 1,2 or 3
- 10. The colour of a pH1 solution when tested with universal indicator
- 11. The colour of a pH7 solution when tested with universal indicator
- 12. The name given to a base that can dissolve in water
- 14. A liquid with a pH number of 4,5 or 6