Year 8, Chemistry, Autumn Revision Crossword

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Across
  1. 3. The number of shells on an atom tell you the...
  2. 4. An acid which contains sulphur.
  3. 5. The name for a substance with a pH 8 - 10.
  4. 10. A pure substance.
  5. 14. The name for NaF.
  6. 15. Stomach acid.
  7. 17. A gas which relights a glowing splint.
  8. 18. Essential compound of life, made when an acid neutralises an alkali.
  9. 21. Substance made up of two or more elements chemically bonded together.
  10. 23. The name for MgO.
  11. 25. The name for a substance with a pH of 0 - 3.
  12. 26. A gas which turns limewater cloudy.
  13. 27. When an alkali neutralises an acid, this is made along with water.
  14. 28. A gas that is tested with a squeaky pop.
  15. 29. An atom with a charge.
Down
  1. 1. The name for a substance with a pH of 9 - 14.
  2. 2. Alkali with formula of KOH.
  3. 6. A substance that neutralises an acid and is soluble in water.
  4. 7. Strong Alkalis are very ...
  5. 8. The number of electrons on the outer of an atom tell you the...
  6. 9. The gases in Group 0 are all said to be ...
  7. 10. A reaction which takes heat in from the surroundings.
  8. 11. An acid which contains nitrogen.
  9. 12. Alkali with formula NaOH.
  10. 13. Red cabbage will go this colour in an alkali.
  11. 16. When an alkali neutralises an acid, this is made along with salt.
  12. 19. Negative fundamental particle.
  13. 20. Strong acids are very ...
  14. 22. The name for a substance with a pH 4 - 6.
  15. 24. A reaction which releases heat to the surroundings.
  16. 25. The pH of a neutral substance.