Chemistry Revision

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Across
  1. 2. colour that universal indicator turns in water
  2. 6. chemical with a pH of more than 7
  3. 7. chemical with a pH of less than 7
  4. 8. Basic substance that neutralises acids in the mouth
  5. 9. Black carbon solid produced in incomplete combustion
  6. 12. An alkane with 8 carbons
  7. 13. colour litmus paper turns in a base
  8. 14. Acid that forms nitrate salts
  9. 17. Medication that neutralises stomach acid
  10. 18. Chemical reaction where a substance reacts with oxygen to release heat
Down
  1. 1. An alkane with 1 carbon
  2. 3. chemical with a pH of 7
  3. 4. Acid that forms chloride salts
  4. 5. Liquid used to test for carbon dioxide
  5. 10. Gas required for combustion to occur
  6. 11. Product of an acid-base reaction (not water)
  7. 15. Type of combustion that happens when there is not enough oxygen
  8. 16. colour litmus paper turns in an acid
  9. 19. Acid that forms sulfate salts