This tag should be used for questions about the naming of compounds and elements, usually using systematic names according to IUPAC recommendations, but also using retained traditional names.
The 1993 IUPAC Blue Book claims that "methane" is a semisystematic name:
Semisystematic names also exist, such as "methane", "propanol", and "benzoic acid", which are so familiar that few chemists realize that they are not fully systematic. They…
According to the Wikipedia article IUPAC nomenclature of inorganic chemistry,
he prefix bi- is a deprecated way of indicating the presence of a single hydrogen ion
A very common example is the commonplace 'bicarb of soda', or sodium bicarbonate…
Would you still call neutral and positively-charged molecular metal oxides polyoxometalates, or do you know a better/proper way to name this class of compounds (Polyoxometalloids/Polyoxometallic species/Polyoxometallides/...)?
This question occurred…
In the case of a name of a person, the first letter is written in capital letters.
Should the first letter of name of a chemical compound or element be written in capital letters?
I always have trouble naming my graphs in class. They never seem too scientific or professional.
For example, we are reviewing density now, and had to graph the mass (Y) of different volumes (X) of water. So, very simply, my title was "Mass of…
I’m interested in working with a large dataset consisting of CAS numbers and each corresponding molecule/chemical unit’s name. From my understanding, CAS Registry Numbers are assigned and stored by a division of the American Chemical…
Acet* indicates Ethyl, but does not offer two Carbon atoms, but three.
Acetaldehyde is Ethanal, Acetic acid is Ethanoic acid, but Aceton is Propanon (yes, I'm aware that there is no Ethanon).
Why is Acetone called Acetone?
Here is an example of two compounds
$$\ce{CH3CH2COOCH3}$$
vs
$$\ce{(CH3)2CHCOO-}$$
i.e.
vs
whose possible IUPAC names
methyl propanoate
vs
methylpropanoate
accidentally differ only in presence/absence of a space. (Note that complete,…
I'm now learning about nomenclature. In particular, oxyanions.
Basically, when you have an anion that is a combination of a non-metal with oxygen.
According to my book:
It ends with -ate for the most common oxyanions of the element. It
ends with…
When you have an IUPAC name that starts with a number, i.e. "3,5-dinitrosalicylic acid", but it's at the start of the sentence would you capitalize the first letter in the name? For example:
3,5-Dinitrosalicylic acid can reduce sugars with aldehyde…
Would "chalcide" be understood as a group 16 dianion (and something less electronegative)? Would "pnictide" be understood as a group 15 trianion (and something less electronegative)?
The letter $\ce{R}$ appears frequently in chemical structure illustrations. For instance, when I Google keratin, I find Wikipedia's Spanish article about it.
In the image illustrating part of the chemical structure, I see elements like $\ce{H, C,…
Iron(III) oxide-hydroxide, $\ce{FeO(OH)}$ has two CAS numbers, 1310-14-1 and 20344-49-4. What's the difference between them?
Why does it have two CAS numbers? As I know, the CAS number should be unique to each substance.
Wikipedia reference
I recently came across a practice problem in my textbook asking me to name a few compounds using -ic and -ous endings. The exact wording is:
Write the name of each of the following ionic substances, using -ous and -ic endings to indicate the charge…
