Chemistry Crossword

12345678910111213141516171819202122232425
Across
  1. 3. can be in between metals and non-metals
  2. 4. made up of one type of matter
  3. 6. workplace hazardous materials information system
  4. 8. when a new substance is formed and non-reversible
  5. 10. the mass of all protons and neutrons in an atom
  6. 11. the center of an atom
  7. 16. when non-metal combine
  8. 19. can eat away or corrode
  9. 20. when a solid changes to a gas
  10. 21. the mixture of magic and chemistry
  11. 24. contaminated material that is a threat to humans and health
  12. 25. electrically charged atoms
Down
  1. 1. chemical reaction that absorbs heat energy
  2. 2. change in appearance or state
  3. 5. mixture in which the different substances are visible
  4. 7. mixture of two or more pure substances that look like one substance
  5. 9. chemical reaction that releases heat energy
  6. 12. pure substance that cannot broken down any further
  7. 13. the number of protons in the nucleus of an atom
  8. 14. ability to conduct electricity or heat
  9. 15. a compound of a metal and non-metal
  10. 17. shiniest of a substances,
  11. 18. substances in a reaction
  12. 22. when a gas changes to a solid
  13. 23. the horizontal rows on the periodic table