Across
- 3. simpler substances.
- 4. all of the properties characteristic of that
- 6. mixture-
- 8. substance- any
- 10. that has a fixed
- 13. and definite
- 15. is anything that has mass and occupies
- 16. the smallest particle that has the properties
- 17. an element.
- 18. one element bound together.
- 19. the smallest unit of a substance that
Down
- 1. units
- 2. occurs between
- 5. formula- the chemical symbols and
- 7. indicating the atoms contained in the basic
- 9. of a substance.
- 11. a substance that cannot be broken down
- 12. a substance made of atoms of more
- 14. more than one pure
- 19. a combination