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The Roman numerals in fact show the oxidation number, but in simple ionic compounds (i.e., not metal complexes) this will always equal the ionic charge on the metal. For a simple overview see [1] Archived 2008-10-16 at the Wayback Machine , for more details see selected pages from IUPAC rules for naming inorganic compounds Archived 2016-03-03 ...
A mnemonic is a memory aid used to improve long-term memory and make the process of consolidation easier. Many chemistry aspects, rules, names of compounds, sequences of elements, their reactivity, etc., can be easily and efficiently memorized with the help of mnemonics.
The main purpose of chemical nomenclature is to disambiguate the spoken or written names of chemical compounds: each name should refer to one compound. Secondarily, each compound should have only one name, although in some cases some alternative names are accepted. Preferably, the name should also represent the structure or chemistry of a compound.
The substituent name for a ring compound is cyclo. The indication (substituent name) for a six carbon chain is hex. The chemical ending for a single bonded carbon chain is ane. The chemical ending for an alcohol is ol. The two chemical endings are combined for an ending of anol indicating a single bonded carbon chain with an alcohol attached to it.
naming of cluster compounds; allowed names for inorganic acids and derivatives; naming of solid phases e.g. non-stoichiometric phases; For a simple compound such as AlCl 3 the different naming conventions yield the following: compositional: aluminium trichloride (stoichiometrically) or dialuminium hexachloride ; substitutional: trichloralumane
This is a list of CAS numbers by chemical formulas and chemical compounds, indexed by formula.The CAS number is a unique number applied to a specific chemical by the Chemical Abstracts Service (CAS).This list complements alternative listings to be found at list of inorganic compounds and glossary of chemical formulae
IUPAC states that, "As one of its major activities, IUPAC develops Recommendations to establish unambiguous, uniform, and consistent nomenclature and terminology for specific scientific fields, usually presented as: glossaries of terms for specific chemical disciplines; definitions of terms relating to a group of properties; nomenclature of chemical compounds and their classes; terminology ...
19.1 U. 19.2 UO 2. 20 V. Toggle V subsection ... Download as PDF; Printable version ... Although most compounds are referred to by their IUPAC systematic names ...