Chemical reactions - F2 Sci

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Across
  1. 7. reaction that absorbs energy
  2. 8. reaction that occurs when things burn in oxygen
  3. 11. cannot dissolve to form solutions
  4. 13. able to be dissolved in liquid to form solutions
  5. 14. substance that speed reactions without being used up
  6. 16. possessed by moving things; a form of energy
  7. 17. how fast a reaction goes
  8. 19. how much of a substance there is
  9. 20. substance that are found in cells and living things. they speed up biochemical reactions
Down
  1. 1. reaction that results when a substance breaks down to form two or more new substances
  2. 2. no new substance formed even though an apparent change occurs
  3. 3. a solution that forms when a solid dissolves in water
  4. 4. how hot or cold something is
  5. 5. reaction that occurs between acids and bases
  6. 6. type of reaction that occurs when a metal deposits or forms
  7. 9. when two or more substances react to form new things
  8. 10. forms when iron reacts with oxygen in water
  9. 12. things that react to form new substances usually written on the left hand side of the equation
  10. 15. reaction that produces heat
  11. 18. usually given off or absorbed during reactions