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