Chemistry Crossword

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Across
  1. 3. combination of pure substances
  2. 8. contains neutrons,protons and electrons.
  3. 9. change from liquid state to a gas
  4. 11. cloudy mixture in which tiny particles of one substance are held within another and cannot be separated out of the other substance
  5. 12. describes a particular substance
  6. 14. substance that can be pounded or rolled into sheets
  7. 17. mixture substances that make up the mixture are visible
  8. 18. warning symbols on hazardous material
  9. 19. slow chemical change that happens when oxygen reacts with the metal
  10. 20. ability to do work
  11. 22. amount of mass in a given volume of a substance
  12. 24. has lost or gained electrons
Down
  1. 1. anything that has mass and occupies space
  2. 2. horizontal row of elements
  3. 4. resists the flow of electricity
  4. 5. chemical reaction that releases energy
  5. 6. cloudy mixture
  6. 7. element that has both non and metallic properties
  7. 9. chemical reaction that absorbs energy
  8. 10. substance made up of only one atom.
  9. 13. device for producing electricity from chemical or solar energy
  10. 15. negatively charged that orbits the nucleus.
  11. 16. the most non-reactive elements
  12. 21. vertical column of elements
  13. 23. poisonous