Tuesday, October 6, 2009 3:56 PM
Oct 6, 2009
Alot of super duper things happend today (especially since i got to light a bunsen burner) but sadly it has to be summarized, so here it goes:
To Name Hydrates1.Write the name of the Chemical Formula
2. Add a prefix* indicating the number of water molecules
3. Add Hydrate after the prefix
*We learnd 10 different prefixes today
1 - Mono........6 - Hexa
2 - Di..........7 - Hepta
3 - Tri.........8 - Octa
4 - Tetra.......9 - Nona
5 - Penta......10 - Deca
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Example:Cu(SO4) . 5H20 => Copper(II) Sulfate pentahydrate
Li(SO4) . 3H2O => Lithium Perchlorate trihydrate
Molecular Compounds- Composed of 2 or more non-metals
- Low melting and boiling point
- Share(not exchange) electrons
- Usually end in -gen or -ine
=> Hydrogen, Oxygen, Nitrogen
- Seven molecules are
Diatomic => H2, N2, O2, F2, Cl2, Br2, I2
- Two molecuales are polyatomic
=> S8, P4
Examples:N204 - Dinitrogen tetraoxide
CS2 - Carbon disulfide
P4O10 - Tetraphosphorous Decaoxide
CO - Carbon Monoxide
Backwards
Nitrogen trichloride - NCl3
Sulpher dibromide - SBr2
Dihydrogen oxide - H2O