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- The general practice among chemists is to use the more common chemical names whenever it is practical to do so, especially in spoken or informal written communication.
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Nov 13, 2022 · The general practice among chemists is to use the more common chemical names whenever it is practical to do so, especially in spoken or informal written communication.
Chemical nomenclature is a set of rules to generate systematic names for chemical compounds. The nomenclature used most frequently worldwide is the one created and developed by the International Union of Pure and Applied Chemistry (IUPAC).
Nomenclature. Long before chemists knew the formulas for chemical compounds, they developed a system of nomenclature that gave each compound a unique name. Today we often use chemical formulas, such as NaCl, C 12 H 22 O 11, and Co (NH 3) 6 (ClO 4) 3 , to describe chemical compounds.
- Ionic Compounds. To name an inorganic compound, we need to consider the answers to several questions. First, is the compound ionic or molecular? If the compound is ionic, does the metal form ions of only one type (fixed charge) or more than one type (variable charge)?
- Compounds Containing Only Monatomic Ions. The name of a binary compound containing monatomic ions consists of the name of the cation (the name of the metal) followed by the name of the anion (the name of the nonmetallic element with its ending replaced by the suffix –ide).
- Compounds Containing Polyatomic Ions. Compounds containing polyatomic ions are named similarly to those containing only monatomic ions, except there is no need to change to an –ide ending, since the suffix is already present in the name of the anion.
- Compounds Containing a Metal Ion with a Variable Charge. Most of the transition metals can form two or more cations with different charges. Compounds of these metals with nonmetals are named with the same method as compounds in the first category, except the charge of the metal ion is specified by a Roman numeral in parentheses after the name of the metal.
The primary function of chemical nomenclature is to ensure that a spoken or written chemical name leaves no ambiguity concerning to what chemical compound the name refers. Each chemical name should refer to a single substance. Today, scientists often refer to chemicals by their common names: for example, water is not often called dihydrogen oxide.
Jun 13, 2023 · Nomenclature. Page ID. Chemical nomenclature is the names we use for chemicals. For instance, H 2 O is called "water", and CH 4 (the gas you burn in a stove) is called "methane." You should learn the chemical nomenclature here on this page now, so that you will be able to understand when it is used. The Basics.
Aug 5, 2018 · Mark Schellhase. By. Anne Marie Helmenstine, Ph.D. Updated on August 05, 2018. There are many ways to name a chemical. Here is a look at the difference between different types of chemical names, including systematic names, common names, vernacular names and CAS numbers. Systematic or IUPAC Name.
