Question

Question #f2df8

Answer 1

`SiCl_4` is silicon tetrachloride.
(The rest of the answers are in explanation.)

Explanation:

To name a covalent binary compound, add -ide to the second element and add numerical prefixes to both elements.
If there is only one atom of the first element, however, don't add mono- to it.
For a more in-depth tutorial on naming, this answer is awesome!

Here's a table of common numerical prefixes:

1. `SiCl_4` is silicon tetrachloride.
2. `SCl_4` is sulfur tetrachloride.
3. `NCl_3` is nitrogen trichloride.
4. `P_2O_3` is diphosphorus trioxide.
5. `SCl_6` sulfur hexachloride.
6. `NF_3` is nitrogen trifluoride.
7. `SF_4` is sulfur tetrafluoride.
8. `P_2S_5` is diphosphorus pentasulfide.
9. `PBr_5` is phosphorus pentabromide.
10. `N_2O_5` is dinitrogen pentoxide. (Not usually penta-oxide, because it sounds a bit weird.)
11. `As_2O_3` is diarsenic trioxide.
12. `B_2O_3` is diboron trioxide.
13. `OF_2` is oxygen difluoride.
14. `SeBr_2` is selenium dibromide.