science

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Across
  1. 3. solid to melting
  2. 7. always results with a new formation not reversible
  3. 8. mass mass of one atom of an element
  4. 10. amu
  5. 13. the material produced by the reaction
  6. 14. when two or more substances combine to form a new substance
  7. 16. solid to a gas
  8. 21. react aggressively so as alkali metals
  9. 22. absorption of energy
  10. 23. have both metal and non metal properties
  11. 24. vertical column
Down
  1. 1. horizontal show
  2. 2. gas to a solid
  3. 4. can me a solid or a gas
  4. 5. vertical column
  5. 6. shiny, malleable, ductile
  6. 9. Workplace Hazardous Materials Information System
  7. 11. when a non metal and a pure substance combines
  8. 12. are pure substances formed as a result of the attraction between particles of opposite charges
  9. 13. are characteristics that can be used to describe a substance
  10. 15. start of the reactions
  11. 17. lose of energy
  12. 18. change can be used to observe matter can be reversible
  13. 19. stable
  14. 20. liquid to solid