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  2. Glossary of chemical formulae - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_chemical_formulae

    Chemical formula Synonyms CAS number CAgO carbonylsilver: CCl 2 F 2: dichlorodifluoromethane freon-12: 75-71-8 CCl 4: carbon tetrachloride tetrachloromethane: 56-23-5 C(CN) 4: tetracyanomethane: 24331-09-7 CFCl 3: trichlorofluoromethane freon-11: 75-69-4 CFCl 2 CF 2 Cl: chlorotrifluoromethane freon-13: 75-72-9 CHCl 3: chloroform ...

  3. Ion - Wikipedia

    en.wikipedia.org/wiki/Ion

    When writing the chemical formula for an ion, its net charge is written in superscript immediately after the chemical structure for the molecule/atom. The net charge is written with the magnitude before the sign; that is, a doubly charged cation is indicated as 2+ instead of +2 .

  4. Ionic liquid - Wikipedia

    en.wikipedia.org/wiki/Ionic_liquid

    Ionic liquids' low volatility effectively eliminates a major pathway for environmental release and contamination. Ionic liquids' aquatic toxicity is as severe as or more so than many current solvents. [65] [66] [67] Ultrasound can degrade solutions of imidazolium-based ionic liquids with hydrogen peroxide and acetic acid to relatively innocuous ...

  5. Chemical formula - Wikipedia

    en.wikipedia.org/wiki/Chemical_formula

    An example is the condensed molecular/chemical formula for ethanol, which is CH 3 −CH 2 −OH or CH 3 CH 2 OH. However, even a condensed chemical formula is necessarily limited in its ability to show complex bonding relationships between atoms, especially atoms that have bonds to four or more different substituents.

  6. Formula unit - Wikipedia

    en.wikipedia.org/wiki/Formula_unit

    In most cases the formula representing a formula unit will also be an empirical formula, such as calcium carbonate (CaCO 3) or sodium chloride (NaCl), but it is not always the case. For example, the ionic compounds potassium persulfate ( K 2 S 2 O 8 ), mercury(I) nitrate Hg 2 (NO 3 ) 2 , and sodium peroxide Na 2 O 2 , have empirical formulas of ...

  7. Chemical species - Wikipedia

    en.wikipedia.org/wiki/Chemical_species

    Chloride is an anionic species, and its formula is Cl −. [7] Radical species: Molecules or atoms with unpaired electrons. Triarlborane anion is a radical species and its formula is Ar3B − [8] [9] Chemicals can be two different types of species. For example, nitrate is a molecular and ionic species, with its formula being NO 3 −.

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    The search engine that helps you find exactly what you're looking for. Find the most relevant information, video, images, and answers from all across the Web.

  9. Zeise's salt - Wikipedia

    en.wikipedia.org/wiki/Zeise's_salt

    Download as PDF; Printable version; In other projects ... is the chemical compound with the formula K[PtCl ... chemistry as one of the first examples of a transition ...