Across
- 5. substance at the end of the reaction
- 7. matter can not travel around freely
- 8. short easy way to show chemical reaction
- 9. substance at the beginning of the reaction
Down
- 1. breaking a compound into something more simple
- 2. when an element switches places in a reaction
- 3. 2 atoms or compounds combine to make something more complex
- 4. number of atoms or molecules in the reaction
- 6. matter can travel around freely
- 7. matter is not created nor destroyed