Across
- 4. SO32
- 6. OH-
- 8. Fe2+
- 9. CO32
- 10. CO2
- 13. CrO4
- 16. gas with rotten egg smell
- 18. AlO3
- 19. S2-
- 20. Fe3+
- 21. Type of bond in HCl
- 22. MnO4
- 24. Cu2+
Down
- 1. NO2
- 2. NO3
- 3. ClO3
- 5. Cu
- 7. atomic mass 35.5
- 11. Cr2O72
- 12. NH4+
- 13. CN
- 14. king of acids
- 15. Type of bond in magnesium chloride
- 17. SO42
- 23. N3-
- 24. Cl-