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