General Chemistry: Chapters 1-4

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Across
  1. 5. the atomic mass unit is derived from the element whose atomic number is 12
  2. 6. device used to measure atmospheric pressures
  3. 7. flammability is a _?_ property
  4. 8. the unit equivalent to Avogadro's number
  5. 9. 1mm of Hg equals 1 _?_.
  6. 10. the step in the scientific method that develops a testable theory
  7. 11. state of matter with a definite volume and indefinite shape
  8. 14. how closely a measured value matches the actual value
  9. 16. the number of protons in an atom
  10. 17. A + B yields AB
  11. 19. A + BC yields AC + B
  12. 20. letters designating standard temperature and pressure
Down
  1. 1. AB + CD yields AD + CD
  2. 2. how many significant figures in 68,080
  3. 3. AB yields A + B
  4. 4. force per unit area
  5. 12. the prefix used to describe 1 millionth of a second
  6. 13. the smallest particle of an element.
  7. 15. the equivalent of 760 torrs
  8. 18. the dense central part of the atom