Across
- 3. Mass is neither created of destroyed
- 5. Any substance that undergoes a chemical change
- 7. Equally balanced state
- 8. Releases of absorbs energy
- 11. Something that releases energy
Down
- 1. Speeds up the chemical reaction
- 2. Slows down chemical change
- 4. Absorbs heat
- 6. Chemical reaction causing a rearrangement of atoms
- 9. A substance obtained from another substance through chemical change
- 10. Are the biological substance that act as catalysts and help complex reactions occur everywhere in life