A compound is a substance made up of a definite proportion of two or more elements. A
chemical formula tells us the number of atoms of each element in a compound. It contains the
symbols of the atoms of the elements present in the compound as well as how many there are
for each element in the form of subscripts
It shows what and how many atoms are in a molecule of a compound.
It shows what and how many atoms are in a molecule of a compound .
Naming is based on the elemental composition. Knowing the name, and the rules of naming, allows scientists to write about that compound without writing the chemical formula each time.
Chemical Formula Stock naming Classical naming
The rules for naming chemical elements and for chemical symbols are established by IUPAC; see this link.
Methane
The IUPAC rules for naming new chemical elements are at this link.
chemical nomenclature
Chemical Formula Stock naming Classical naming
The formula is would be CO2. Bur since carbon is a nonmetal that system of naming is not usually used. The compound is instead called carbon dioxide.
It help to identify oneself
The chemical nomenclature system is used in naming compounds.
The rules for naming chemical elements and for chemical symbols are established by IUPAC; see this link.
Methane
It is: H2SO4 ============================== While there is certainly the chemical with the formula H2SO4, there is no "dihydrogen sulfate" name. H2SO4 is called sulfuric acid, and that is the only name recognized by the IUPAC for H2SO4. So if you are naming H2SO4 then use "sulfuric acid", do not use "dihydrogen sulfate."
The IUPAC rules for naming new chemical elements are at this link.
You can identify each chemical reaction by naming it,
Energy has no chemical formula as it is not a chemical.
THat is in IUPAC naming..: Iron (I I) Perselenate and old method of naming: Ferrous Perselenate
chemical nomenclature