Across
- 2. reaction is hotter than its surroundings
- 4. changes consist of boiling, melting, freezing, and shredding
- 6. neutral charge in atom
- 10. 2 or more atoms chemically bonded to each other
- 12. has a definite shape and volume
- 13. reaction is cooler than its surroundings
- 15. can neither be created or destroyed in a chemical reaction
Down
- 1. positive charge in atom
- 3. negative charge in atom
- 5. changes consist of burning, cooking, rusting, and rotting
- 7. bond that occurs through the interaction of neutral atoms
- 8. has a deinite volume but takes the shape of the container
- 9. substance that cannot be broken down by chemical means
- 11. bond is the strongest type of chemical bond
- 14. has no definite shape or volume