Advanced Chemistry Crossword Puzzle

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Across
  1. 4. defined as the mass of a given element or molecule per mole of a substance
  2. 6. a measurement of temperature on which water freezes at 32° and boils at 212°
  3. 10. C27H46O
  4. 11. is the ratio of an amount of each element to the total amount of individual elements in a compound.
  5. 13. one unit of this is equal to -272.15 Celsius
  6. 16. Standard unit of length in the metric system
  7. 17. 6.022*10^23
  8. 18. is the weighted average of the masses of naturally-occurring isotopes
  9. 19. used to indicate the number of atoms of an element present in a molecule or formula unit
  10. 20. a standard scientific unit for measuring large quantities of very small entities such as atoms, molecules, or other specified particles
Down
  1. 1. measure of the amount of matter in an object
  2. 2. a chemical formula that indicates the kinds of atoms and the number of each kind in a molecule of a compound
  3. 3. atomic mass unit
  4. 5. C9H13NO3
  5. 7. this is the simplest positive integer ratio of atoms present in a compound
  6. 8. What compound is C10H14N2?
  7. 9. . are chemical substances made up of two or more elements that are chemically bound together in a fixed ratio
  8. 12. Yards, feet, inches, and pounds belong in what system of measurement?
  9. 14. also called centigrade, water boils at 0° and freezes at 100°
  10. 15. the force exerted on a body by gravity