Across
- 2. Vinegar has the pH value of? (write out the number as a word).
- 5. The acid found in cola.
- 8. This safety symbol would be put on a bottle of very strong acid.
- 9. Sodium __________. The alkali found in drain cleaner.
- 10. A chemical reaction which occurs when you add an acid to an alkali.
- 11. The pH _________. This is used alongside universal indicator to find the pH of a substance.
- 12. When an acid and alkali react a _________ and water are formed.
- 17. These tablets can be used to relieve heartburn (build up of acid in the stomach).
- 18. A neutral substance will turn universal indicator this colour.
- 20. This safety symbol would be put on a bottle of weak acid.
- 21. Something which can be used to find whether a substance is an acid or alkali.
- 22. Safety equipment used to protect the eyes when using acids and alkalis.
- 24. A substance with a pH value between 8-14.
- 26. This acid makes nitrate salts.
Down
- 1. Adding acids to food gives them a _______ taste.
- 3. The amount of a substance dissolved in one litre of water is its _____________.
- 4. An alkali with a strong choking smell used in cleaners.
- 6. A strong alkali will turn universal indicator this colour.
- 7. This acid makes chloride salts.
- 13. ___________ paper. A type of indicator paper. It comes as red or blue.
- 14. Also known as acetic acid. Is very nice on fish and chips.
- 15. A strong acid will turn universal indicator this colour.
- 16. A substance of pH 7 is called _________.
- 19. The acid found in citrus fruits.
- 22. These can be used to protect the hands when using strong acids or alkalis.
- 23. The dyes in litmus paper are extracted from this type of organism.
- 25. A substance with a pH value between 0-6.