Across
- 3. Particles can move around, but are still close together
- 4. The study of the composition, structure, and properties of matter and the changes it undergoes
- 6. Beginning substances that start a reaction
- 11. Smallest unit of an element that maintains the properties of that element
- 12. Have properties of metal and nonmetals
- 13. Substances that are formed during the reaction
- 14. Physical combination of 2 or more substances
- 15. Depends on the type of matter, not the amount present
Down
- 1. A process that releases energy into the surroundings
- 2. particles collide with enough energy to break into charged particles
- 5. A process that absorbs energy from the surroundings
- 7. Depends on the amount of matter in the sample
- 8. Particles can separate and move throughout container
- 9. A measure of the amount of matter
- 10. Particles vibrate but don't move