Across
- 5. mixing occurs between individual units
- 6. any matter that has a fixed composition and definite properties
- 8. a substance that cannot be broken down into simple substances
- 9. a combination of more than one pure substance
- 10. anything that has mass and occupies space
Down
- 1. substances are not uniformly mixed
- 2. a substance made of atoms of more than one element bound together
- 3. the smallest unit of a substance that exhibits all of the properties characteristic of that substance
- 4. the chemical symbols and numbers indicating the atoms contained in the basic unit of a substance
- 7. the smallest particle that has the properties of an element