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