Oxygen anion name

In our discussion of the alkali metals we noted two less common oxygen anions, namely, the peroxide ( 2 ) and superoxide ( 2 ) ions. Compounds of these ions often react with themselves to produce an oxide and O2. For example, aqueous hydrogen peroxide, H2O2, slowly decomposes into water and O2 at room temperature ... 

Hydrobromic acid. HBr is a binary acid it doesn t contain oxygen, so it isn t an oxy-acid. You begin by writing hydro-. Next, change the ending of the anion name, bromine, to -ic and write bromic after hydro- Write acid at the end, and you re done ... 

The olivine structure is named after a series of A2BX4 minerals with two end members Fc2Si04 (fayalite) and Mg2Si04 (forsterite). The two minerals form a series with a structure consisting of a distorted HCP arrangement of oxygen anions. The A cations (Mg and Fe) reside in octahedral sites and the B cations (Si) in tetrahedral sites. The... 

Chemical formulas describe the simplest atom ratio (empirical formula), actual atom number (molecular formula), and atom arrangement (structural formula) of one unit of a compound. An ionic compound is named with cation first and anion second. For metals that can form more than one ion, the charge is shown with a Roman numeral. Oxoanions have suffixes, and sometimes prefixes, attached to the element root name to indicate the number of oxygen atoms. Names of hydrates give the number of associated water molecules with a numerical prefix. Acid names are based on anion names. Covalent compounds have the first word of the name for the element that is leftmost or lower down in the periodic table, and prefixes show the number of each atom. The molecular (or formula) mass of a compound is the sum of the atomic masses in the formula. Molecules are depicted by various types of formulas and models. 

When the anion contains oxygen, the acid name is formed from the root name of the central element of the anion or the anion name, with a suffix of -ic or -ous. When the anion name ends in -ate, the suffix -ic is used. 

If the number of oxygens is one larger than the number in the -ic acid, the prefix per- is placed before both the acid and anion names HCIO4 is perchloric acid, and C104 is perchlorate ion. 

A consequence of the coordinative unsaturation at oxide surfaces is that the oxygen anions in the surface have weaker bonds with the underlying lattice than do the fully coordinated oxygen ions of the interior. As a result, lattice oxygens at the surface may participate in oxidation reactions, where they become incorporated in product molecules. This type of mechanism, named after Mars and Van Krevelen,... 

Carboxylic Acids. These contain the carboxyl group —COOH three valence bonds of the carbon atom have been replaced by oxygen. The name indicates their acidic nature. Carboxylic acids dissociate in water to give one proton (more properly a hydronium ion, H3O+) and the negatively charged anion... 

Isopolyanions. Isopolyanions are named by indicating with numerical prefixes the number of atoms of the characteristic element. It is not necessary to give the number of oxygen atoms when the charge of the anion or the number of cations is indicated. 

Names of monatomic anions end in -ide. Oxoanions are anions that contain oxygen. The suffix -ate indicates a greater number of oxygen atoms titan the suffixe -ite within the same series of oxoanions. 

The sulfur-rich oxides S 0 and S 02 belong to the group of so-called lower oxides of sulfur named after the low oxidation state of the sulfur atom(s) compared to the best known oxide SO2 in which the sulfur is in the oxidation state +4. Sulfur monoxide SO is also a member of this class but is not subject of this review. The blue-green material of composition S2O3 described in the older literature has long been shown to be a mixture of salts with the cations S4 and Ss and polysulfate anions rather than a sulfur oxide [1,2]. Reliable reviews on the complex chemistry of the lower sulfur oxides have been published before [1, 3-6]. The present review deals with those sulfur oxides which contain at least one sulfur-sulfur bond and not more than two oxygen atoms. These species are important intermediates in a number of redox reactions of elemental sulfur and other sulfur compounds. 

Most polyatomic anions contain a central atom surrounded by one to four oxygen atoms. These species are called oxoanions, and they are named according to the following guidelines ... 

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