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Pure water (H 2 O) is an example of a compound. The ball-and-stick model of the molecule shows the spatial association of two parts hydrogen (white) and one part oxygen (red) A chemical compound is a chemical substance composed of many identical molecules (or molecular entities ) containing atoms from more than one chemical element held ...
Relevant links for chemical compounds are: Chemical Abstracts Service, a division of the American Chemical Society Chemical Abstracts Service (CAS) – substance databases; CAS Common Chemistry; ChemSpider; PubChem
Print/export Download as PDF; ... This is a list of common chemical compounds with chemical formulae and CAS numbers, ... Ac 2 O 3: actinium(III) oxide: 12002-61-8
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
Chemical formulas can be used to describe the relative amounts of elements present in a compound. For example, the chemical formula for water is H 2 O: this means that each molecule of water is constituted by 2 atoms of hydrogen (H) and 1 atom of oxygen (O). The chemical composition of water may be interpreted as a 2:1 ratio of hydrogen atoms ...
the simplest ether; a useful precursor to other organic compounds and an aerosol propellant: Dimethylformamide: organic compound; a common solvent for chemical reactions Dimethylsulfide: organosulfur compound; used in petroleum refining and in petrochemical production processes; a reducing agent in ozonolysis reactions Dimethyl sulfoxide
Hydrates are ionic compounds that have absorbed water. They are named as the ionic compound followed by a numerical prefix and -hydrate. The numerical prefixes used are listed below (see IUPAC numerical multiplier): mono-di-tri-tetra-penta-hexa-hepta-octa-nona-deca-For example, CuSO 4 ·5H 2 O is "copper(II) sulfate pentahydrate".
Also acid ionization constant or acidity constant. A quantitative measure of the strength of an acid in solution expressed as an equilibrium constant for a chemical dissociation reaction in the context of acid-base reactions. It is often given as its base-10 cologarithm, p K a. acid–base extraction A chemical reaction in which chemical species are separated from other acids and bases. acid ...