Across
- 2. Chemical reaction that releases heat?
- 5. Substance with a pH less than 7?
- 7. Chemical bond between atoms?
- 8. Chemical element with the symbol O?
- 9. Process of changing from solid to gas?
- 10. The smallest particle of an element that still has the properties of that element?
- 11. Substance that speeds up a chemical reaction?
- 12. Subatomic particle with a positive charge?
- 13. Chemical bond between ions?
- 15. Chemical element with the symbol H?
Down
- 1. Process of changing from gas to liquid?
- 3. Substance with a pH greater than 7?
- 4. Process of changing from liquid to gas?
- 6. Homogeneous mixture of two or more substances?
- 14. Chemical element with the symbol C?