Chemistry Crossword

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Across
  1. 4. are substance that help reaction proceed faster
  2. 5. change the results when two or more substance react to create a different substance or substances
  3. 6. a table in which the elements are organized by their physical and chemical property
  4. 8. property that describes the physical appearance and composition of a substance
  5. 11. pure substance formed when at least one metal and non metal combine
  6. 13. new substance produced
  7. 14. change in the appearance or state of a substance that does not change the composition
  8. 19. oxygen reacts with a substance
  9. 20. absorbs energy
  10. 23. mass of one atom of an element
  11. 24. can be broken down into other substance
  12. 25. cloudy mixture in which tiny particles of one substance are held within another and particles cannot be separated
Down
  1. 1. release energy
  2. 2. substance that react with another substance
  3. 3. description of how substance interacts with other substances
  4. 7. can be seperated
  5. 9. all products of a chemical reaction are accounted for
  6. 10. become electrically charged
  7. 12. most reactive of the metals
  8. 15. group 17 elements in periodic table
  9. 16. two or more pure substance
  10. 17. chemical combination of two or more elements in a specific ratio
  11. 18. number of protons in the nucleus
  12. 21. combination of pure substances
  13. 22. slow chemical change