CHEMICAL REACTIONS YR. 9

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Across
  1. 2. energy in animal cells.
  2. 4. - These chemical compounds turn Universal
  3. 6. - An endothermic process carried out by
  4. 8. yellow to red.
  5. 9. - These chemical compounds turn Universal
  6. 10. an acid or a base.
  7. 12. - The symbol O represents the chemical
  8. 13. blue to purple.
  9. 15. to produce glucose and oxygen.
  10. 18. - A chemical reaction which off heat.
  11. 19. __
Down
  1. 1. together in a fixed ratio.
  2. 2. - A reverse process to photosynthesis
  3. 3. - Substances that turn Universal Indicator green
  4. 5. are said to be ____________.
  5. 7. - Substances that tell us whether a substance
  6. 11. - A chemical reaction which takes in heat.
  7. 14. - Two or more atoms of the SAME element
  8. 16. - Two or more atoms of DIFFERENT elements
  9. 17. together to form a _________.
  10. 20. - A type of indicator.