"GENERAL CHEMISTRY G11": HTML5 Crossword

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3. 18........is used in a welding environment (5)
7. 8.The silent killer oxide of carbon (14)
10. 10.A shared pair of electrons (12)
12. 13.Water is an example of .......molecular compound (6)
14. 11.metallic bonding is the attraction between metal......and a sea of electrons (4)
16. 17.......is a metal pollutant (4)
17. 1.Name the type of bonding in HBr (8)

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1. 14.the catalyst in contact process (14)
2. 9.A reaction controlled by amount of light (13)
4. 2.according to the collision theory, for a reaction to take place, there must be collisions between the particles and the collisions must have.......energy (10)
5. 6.Methane and .....are considered the major green house gases (13)
6. 3. In terms of heat change, Haber process is classified as a ........reaction (10)
8. 16........metals form colored compounds (10)
9. 4........in pressure improves the yield of ammonia in the Haber process (8)
11. 12.ionic compounds have a .............ionic structure (5)
13. 7.Natural gas and paddy rice are sources of ........gas (7)
15. 5........is the amount of substance with 6.02x10 power 23 (5)