Across
- 2. a colorless odorless highly flammable gas
- 3. The invisible gaseous substance surrounding the earth
- 4. a red-brown metal
- 6. fog or haze combined with smoke
- 7. A nonmetal which has 2 main forms
- 8. A substance that gives seawater its characteristic taste
- 9. a soft silver white metal
- 10. a powdery substance made with calcined lime and clay
- 13. compound of a metal with the hydroxide ion OH
- 16. a mixture in which the composition is not uniform throughout the mixture
- 18. temperature at which liquid boils and turns to vapor
- 19. The ability to be dissolved especially in water
Down
- 1. properties are intermediate between those of metals and solid nonmetals
- 2. a mixture in which the composition is uniform throughout the mixture
- 5. reddish or yellowish brown flaky coating of iron oxide
- 11. Ability to support combustion
- 12. capability of being shaped or extended
- 14. The quality or condition of being hard
- 15. The quality of being toxic or poisonous
- 17. is chemical element with symbol Fe