Across
- 3. the basic unit of a chemical element
- 4. a thing that is composed of two or more separate elements
- 8. characteristic of a substance that may be observed when it participates in a chemical reaction
- 11. having assets in excess of liabilities; able to pay one's debts
- 12. cloudy
- 13. undergoes changes during a reaction
- 14. an article or substance that is manufactured or refined for sale
- 15. Russian chemist who developed a periodic table of the chemical elements and predicted the discovery of several new elements
Down
- 1. a part or aspect of something abstract, especially one that is essential or characteristic
- 2. the mass of an atom of a chemical element expressed in atomic mass units
- 5. same
- 6. final product
- 7. different
- 9. things you can observe
- 10. a gesture of respect, homage, or polite recognition or acknowledgment, especially one made to or by a person when arriving or departing