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Hydrogen compounds are compounds containing the element hydrogen. In these compounds, hydrogen can form in the +1 and -1 oxidation states. Hydrogen can form compounds both ionically and in covalent substances. It is a part of many organic compounds such as hydrocarbons as well as water and other organic substances.
Dihydrogen monoxide is a name for the water molecule, which comprises two hydrogen atoms and one oxygen atom (H 2 O).. The dihydrogen monoxide parody is a parody that involves referring to water by its unfamiliar chemical systematic name "dihydrogen monoxide" (DHMO, or the chemical formula H 2 O) and describing some properties of water in a particularly concerning manner — such as the ...
The structural formula of a chemical compound is a graphic representation of the molecular structure (determined by structural chemistry methods), showing how the atoms are connected to one another. [1] The chemical bonding within the molecule is also shown, either explicitly or implicitly.
Dodecahedrane is a chemical compound, a hydrocarbon with formula C 20 H 20, whose carbon atoms are arranged as the vertices (corners) of a regular dodecahedron.Each carbon is bound to three neighbouring carbon atoms and to a hydrogen atom.
These structures have been known for some time, and well characterized by crystallography; [56] however, an understanding of their relationship to the conventional hydrogen bond, ionic bond, and covalent bond remains unclear.
There is no precise value that distinguishes ionic from covalent bonding, but an electronegativity difference of over 1.7 is likely to be ionic while a difference of less than 1.7 is likely to be covalent. [21] Ionic bonding leads to separate positive and negative ions. Ionic charges are commonly between −3e to +3e.
In modern usage, this is typically only used for ionic bonds, but it is sometimes (and more frequently in the past) been applied to all compounds containing covalently bound H atoms. In this broad and potentially archaic sense, water (H 2 O) is a hydride of oxygen , ammonia is a hydride of nitrogen , etc.
In ionic compounds, hydrogen can take the form of either a negatively charged anion, where it is known as hydride, or as a positively charged cation, H +, called a proton. Although tightly bonded to water molecules, protons strongly affect the behavior of aqueous solutions , as reflected in the importance of pH.