Across
- 3. Group 17
- 5. conducts
- 7. Negative Charge
- 9. Non Reversible
- 10. Absorbs heat
- 13. sheet metal
- 17. Two or more elements combined
- 18. solid formed in reaction
- 20. Gas to solid
- 22. Organic Catalyst
- 23. Balance Charges
Down
- 1. Reversible
- 2. Mixed with air or water
- 4. Neutral
- 5. water from gas
- 6. Two nonmetals
- 8. Positive Charge
- 11. Releases heat
- 12. Speeds reaction
- 14. gas from liguid
- 15. Atomic Theory
- 16. Information System
- 19. Periodic Table
- 20. made into wires
- 21. Alkali metals