SA Chemistry

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Across
  1. 4. Reaction rate at beginning of reaction
  2. 5. Positive particles in an atom
  3. 7. Describes hydrocarbons with single bonds
  4. 11. Type pf reaction where an alkali cancels out an acid
  5. 14. Describes hydrocarbons with double bonds
  6. 15. Substance with a ph of 3
  7. 16. Substance with a ph of 13
  8. 17. Series that sorts carbon compounds into alkanes and alkenes
  9. 20. Most reactive metal in the reactivity series
Down
  1. 1. Compounds containing only carbon and hydrogen
  2. 2. Neutral particles in an atom
  3. 3. Type of symbols used to warn people of dangers
  4. 6. Electrons are found on these
  5. 8. Substance with a ph of 7
  6. 9. Oil that comes from fossils
  7. 10. These must collide for a reaction to happen
  8. 12. Negative particles in an atom
  9. 13. where positive particles are found
  10. 18. What happens to a reaction when all reactants are used up
  11. 19. These change colour in the presence of different metals ions