1. Naming Molecular Compounds

2. Chemistry Joke
Q: What did Santa say when it rained on Christmas day?
A: HOH, HOH, HOH!!

3. Naming Molecular Compounds
First, is the compound molecular?
If the first element is a nonmetal, then the compound is molecular.
DO NOT USE CHARGES!!!
DO NOT SIMPLIFY!!!
Instead, use PREFIXES to show how many of both elements!
Don’t write mono- on first element
First element keeps its name
Second element ends in –ide

4. 1 – mono- 2 – di- 3 – tri- 4 – tetra- 5 – penta- 6 – hexa- 7 – hepta-
Prefixes
1 – mono-
2 – di-
3 – tri-
4 – tetra-
5 – penta-
6 – hexa-
7 – hepta-
8 – octa-
9 – nona-
10 – deca-

5. Name These Molecular Compounds
N2O
F5S2
PCl3
ClO2
SF6
Dinitrogen monoxide
Pentafluorine disulfide
Phosphorus trichloride
Chlorine dioxide
Sulfur hexafluoride

6. Pentaphosphorus trinitride Disulfur dichloride
Going the other way…
Nitrogen trifluoride
Pentaphosphorus trinitride
Disulfur dichloride
Heptachlorine pentaphosphide
Hexanitrogen tetroxide
NF3
P5N3
S2Cl2
Cl7P5
N6O4

7. Common Names Dihydrogen monoxide  H2O  Water
Nitrogen trihydride  NH3  Ammonia
Carbon tetrahydride  CH4  Methane

8. Diatomic Molecules
O2 Oxygen
N2 Nitrogen
F2 Fluorine
ETC…..

9. Chemistry Joke Sung to the tune, “ We Three Kings”
We the students of chemistry are
Taking tests that we think are hard
Dimensional Analysis, Volumes, & Densities
Worrying all the time…

10. Chemistry Joke Ohhhhhhh… Room of wonder Room of fright
We’re trying to get our structures right
Could you lead us to the answer
Guide us by your fluorescent light