Across
- 2. a substance that lowers the activation energy of a chemical reaction
- 4. a net release of energy
- 5. a net absorption of energy
- 7. no atoms are gained or lost during any reaction
- 9. when a reaction and its reverse act at the same rate.
- 10. clues to indicate a chemical change
Down
- 1. if changed, the equilibrium shifts to oppose change, until new equilibrium is reached
- 3. the minimum energy required to overcome the initial breaking of bonds in reactants
- 6. a chemical that accepts a hydrogen ion, H+
- 8. chemical that donates a hydrogenion, H+