Across
- 3. substance that undergoes a chemical change
- 5. reaction that absorbs energy
- 7. reaction that makes new substances
- 10. reaction that releases energy
- 11. exchange of ions between two compounds
- 12. shorthand way to show a chemical reaction
Down
- 1. reaction combining 2 elements to make a new, more complex compound
- 2. substances that result from a chemical reaction
- 4. reaction where atoms of one element take the place of another element
- 6. substance that changes the rate of a chemical reaction
- 7. reaction when a compound burns in oxygen
- 8. state where a chemical reaction and its reverse are happening at the same time and rate
- 9. reaction where a compound is broken down to 2 simpler substances