Binary Compounds

[Hitman47]

I need help with naming binary compounds, I don't understand it.

 

With Binary (I) Compounds

Binary (II) compounds

Binary (III) Compounds

 

can someone explain to me the concept and how to name these binary compounds.

 

thanks

 

Hitman47.

[fafalone]

element name (oxidation state, if more than one exists) polyatomic ion

[Hitman47]

are these right:

 

Co N Cobalt nitride

3

 

H S Hydrogen Sulfide

2

 

Zinc Chloride ZnCI

 

 

HBr hydrogen bromide

 

 

 

 

are these correct??

[fafalone]

Co₃N is tricobalt nitride

 

H₂S is dihydrogen sulfide

 

Depending on your book/professor, the tri- and di- might be omittable, but technically they should be included. The rest are right (I assuming ZnCI is actually ZnCl, as the former doesn't exist)

[NSX]

Originally posted by Hitman47

are these right:

 

Co N Cobalt nitride

3

 

I believe Cobalt is multi-valent, the common valences being +2, +3. So if asked how to write in words, it would be Cobalt (insert # of valence e-here) Nitride using the IUPAC, or stock system.

[EvoN1020v]

For example using Aluminum Oxide, Al have 3+ and O is 2- ; hence you need to balance the formula which would come to Al2O3.

 

Another example: Mercury Oxide. Mercury (Hg) have 2 valence positives so you require to put the roman number after the name in IUPAC name. For example, using Hg 2+ , you will get Hg0 which is Mercury (II) Oxide.