Across
- 3. acid and alkali to produce water and salt
- 4. to separate inks and dyes
- 5. hydrogen gas extinguish lighted splint with this sound
- 7. used to measure strength of acid/alkaline (0-14)
- 10. used to treat sewage before release
- 13. acid react with alkali to produce this gas
- 14. separation technique based on boiling and condensation
- 15. a pill you eat to neutralise acid in your stomach
Down
- 1. to separate insoluble solid from a mixture
- 2. 2 or more substances combined together
- 6. to prevent nails from rusting
- 8. acid react with metal to produce this gas
- 9. pH 7
- 11. acids taste...
- 12. acids turn blue litmus paper/universal indicator...
- 13. limewater turns... when this gas is present