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  2. Water - Wikipedia

    en.wikipedia.org/wiki/Water

    'Dihydrogen monoxide' is a technically correct but rarely used chemical name of water. This name has been used in a series of hoaxes and pranks that mock scientific illiteracy. This began in 1983, when an April Fools' Day article appeared in a newspaper in Durand, Michigan. The false story consisted of safety concerns about the substance. [250]

  3. Properties of water - Wikipedia

    en.wikipedia.org/wiki/Properties_of_water

    Using chemical nomenclature for type I ionic binary compounds, water would take the name hydrogen monoxide, [105] but this is not among the names published by the International Union of Pure and Applied Chemistry (IUPAC). [101] Another name is dihydrogen monoxide, which is a rarely used name of water, and mostly used in the dihydrogen monoxide ...

  4. Chemical symbol - Wikipedia

    en.wikipedia.org/wiki/Chemical_symbol

    Chemical symbol. The periodic table, elements being denoted by their symbols. Chemical symbols are the abbreviations used in chemistry, mainly for chemical elements; but also for functional groups, chemical compounds, and other entities. Element symbols for chemical elements, also known as atomic symbols, normally consist of one or two letters ...

  5. List of chemical elements - Wikipedia

    en.wikipedia.org/wiki/List_of_chemical_elements

    List of chemical elements. 118 chemical elements have been identified and named officially by IUPAC. A chemical element, often simply called an element, is a type of atom which has a specific number of protons in its atomic nucleus (i.e., a specific atomic number, or Z). [1]

  6. Hydrate - Wikipedia

    en.wikipedia.org/wiki/Hydrate

    In organic chemistry, a hydrate is a compound formed by the hydration, i.e. "Addition of water or of the elements of water (i.e. H and OH) to a molecular entity". [5] For example: ethanol, CH3−CH2−OH, is the product of the hydration reaction of ethene, CH2=CH2, formed by the addition of H to one C and OH to the other C, and so can be ...

  7. IUPAC nomenclature of chemistry - Wikipedia

    en.wikipedia.org/wiki/IUPAC_nomenclature_of...

    Use. IUPAC nomenclature is used for the naming of chemical compounds, based on their chemical composition and their structure. [1] For example, one can deduce that 1-chloropropane has a Chlorine atom on the first carbon in the 3-carbon propane chain.

  8. Chemical bonding of water - Wikipedia

    en.wikipedia.org/wiki/Chemical_bonding_of_water

    Chemical bonding of water. Lewis Structure of H 2 O indicating bond angle and bond length. Water (H2O) is a simple triatomic bent molecule with C 2v molecular symmetry and bond angle of 104.5° between the central oxygen atom and the hydrogen atoms. Despite being one of the simplest triatomic molecules, its chemical bonding scheme is ...

  9. Heavy water - Wikipedia

    en.wikipedia.org/wiki/Heavy_water

    Infobox references. Heavy water (deuterium oxide, 2. H. 2O, D. 2O) is a form of water in which hydrogen atoms are all deuterium (2. H or D, also known as heavy hydrogen) rather than the common hydrogen-1 isotope (1. H, also called protium) that makes up most of the hydrogen in normal water. [3]