Question

name & #: devin b. 3
name the following compounds:

1. n₂o₅
2. sebr₆
3. ch₄
4. c₆h₆
5. pf₆
6. bf₃
7. p₂i₄
8. s₂cl₃
9. no₂
10. p₂o₅
11. of₂
12. co
13. bro₃
14. bn
15. cbr₄

Explanation:

Step1: Recall naming rules for covalent compounds

For covalent compounds, prefixes are used to indicate the number of each type of atom. The prefixes are: mono - 1, di - 2, tri - 3, tetra - 4, penta - 5, hexa - 6, hepta - 7, octa - 8, nona - 9, deca - 10. The second - element ends with - ide.

Step2: Name $N_2O_5$

There are 2 nitrogen atoms, so the prefix is "di -", and 5 oxygen atoms, so the prefix is "penta -". The name is dinitrogen pentoxide.

Step3: Name $SeBr_6$

There is 1 selenium atom (no prefix for 1 in the first element usually), and 6 bromine atoms. The name is selenium hexabromide.

Step4: Name $CH_4$

It is methane. This is a common - name for this simple hydrocarbon and does not follow the strict prefix - based naming as it is well - known by this name.

Step5: Name $C_6H_6$

It is benzene. It is an aromatic hydrocarbon with a well - known common name.

Step6: Name $PF_6$

There is 1 phosphorus atom and 6 fluorine atoms. The name is phosphorus hexafluoride.

Step7: Name $BF_3$

There is 1 boron atom and 3 fluorine atoms. The name is boron trifluoride.

Step8: Name $P_2I_4$

There are 2 phosphorus atoms and 4 iodine atoms. The name is diphosphorus tetraiodide.

Step9: Name $S_2Cl_3$

There are 2 sulfur atoms and 3 chlorine atoms. The name is disulfur trichloride.

Step10: Name $NO_2$

There is 1 nitrogen atom and 2 oxygen atoms. The name is nitrogen dioxide.

Step11: Name $P_2O_5$

There are 2 phosphorus atoms and 5 oxygen atoms. The name is diphosphorus pentoxide.

Step12: Name $OF_2$

There is 1 oxygen atom and 2 fluorine atoms. The name is oxygen difluoride.

Step13: Name $CO$

There is 1 carbon atom and 1 oxygen atom. The name is carbon monoxide.

Step14: Name $BrO_3$

There is 1 bromine atom and 3 oxygen atoms. The name is bromine trioxide.

Step15: Name $BN$

There is 1 boron atom and 1 nitrogen atom. The name is boron nitride.

Step16: Name $CBr_4$

There is 1 carbon atom and 4 bromine atoms. The name is carbon tetrabromide.

Answer:

1. Dinitrogen pentoxide
2. Selenium hexabromide
3. Methane
4. Benzene
5. Phosphorus hexafluoride
6. Boron trifluoride
7. Diphosphorus tetraiodide
8. Disulfur trichloride
9. Nitrogen dioxide
10. Diphosphorus pentoxide
11. Oxygen difluoride
12. Carbon monoxide
13. Bromine trioxide
14. Boron nitride
15. Carbon tetrabromide