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List of compounds. 11 languages ... Download as PDF; Printable version; ... List of alchemical substances; Polyatomic ion – Ion containing two or more atoms;
Polyatomic ions often are useful in the context of acid–base chemistry and in the formation of salts. Often, a polyatomic ion can be considered as the conjugate acid or base of a neutral molecule. For example, the conjugate base of sulfuric acid (H 2 SO 4) is the polyatomic hydrogen sulfate anion (HSO − 4).
Print/export Download as PDF; ... Mixed anion compounds (4 C, 76 P) S. Sulfur ions (2 C, 12 P) Z. ... Polyatomic ion; S. Salt (chemistry)
An ionic compound is named by its cation followed by its anion. See polyatomic ion for a list of possible ions. For cations that take on multiple charges, the charge is written using Roman numerals in parentheses immediately following the element name. For example, Cu(NO 3) 2 is copper(II) nitrate, because the charge of two nitrate ions (NO −
Download as PDF; Printable version; In other projects ... Although most compounds are referred to by their IUPAC systematic names (following ... OF 2, PdF 2, PdF 4 ...
Download as PDF; Printable version; In other projects ... Ions are charged atoms (monatomic ions) or molecules (polyatomic ions). They include cations which have a ...
A compound's empirical formula is a very simple type of chemical formula. [27] It is the simplest integer ratio of the chemical elements that constitute it. [ 28 ] For example, water is always composed of a 2:1 ratio of hydrogen to oxygen atoms, and ethanol (ethyl alcohol) is always composed of carbon, hydrogen, and oxygen in a 2:6:1 ratio.
The polyiodide ions have much more complicated structures. Discrete polyiodides usually have a linear sequence of iodine atoms and iodide ions, and are described in terms of association between I 2, I − and [I 3] − units, which reflects the origin of the polyiodide. In the solid states, the polyiodides can interact with each other to form ...