Acids and Alkalis

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