Across
- 4. two or more atoms chemically combined
- 5. 1 or 2-letter abbreviations that represent elements
- 6. pure substance that can be broken down into elements
- 7. change occurs when a substance is changed, but does not become a new substance
- 8. basic building block of all matter
Down
- 1. change that results in a new chemical substance
- 2. a liquid, homogeneous mixture of one or more solutes dissolved in a solvent
- 3. pure substances that cannot be broken down