Across
- 2. Mercury ore HgS
- 5. 1/2mole of water
- 9. Atmass40
- 11. Doesnt have charge
- 15. Groupofoxygen
- 16. Amphotric oxide
- 17. Aluminium primary resource
- 18. Which Can increase/decrease speed of chemical reaction
- 19. lustrous Non Metal
- 20. Rogueelement
Down
- 1. Eka aluminium
- 3. Most electropositive
- 4. Rotten egg smell
- 6. method used to separate cream from milk
- 7. Copper zinc alloy
- 8. Rusting in ship
- 10. C6H6
- 12. Cluster of soap molecules
- 13. Sum of proton and neutron
- 14. 1mole