enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Silver nitrate - Wikipedia

    en.wikipedia.org/wiki/Silver_nitrate

    The stoichiometry of the reaction depends upon the concentration of nitric acid used. 3 Ag + 4 HNO 3 (cold and diluted) → 3 AgNO 3 + 2 H 2 O + NO Ag + 2 HNO 3 (hot and concentrated) → AgNO 3 + H 2 O + NO 2. The structure of silver nitrate has been examined by X-ray crystallography several times. In the common orthorhombic form stable at ...

  3. Silver chloride - Wikipedia

    en.wikipedia.org/wiki/Silver_chloride

    This reaction is used in photography and film and is the following: [5] Cl − + hν → Cl + e − (excitation of the chloride ion, which gives up its extra electron into the conduction band) Ag + + e − → Ag (liberation of a silver ion, which gains an electron to become a silver atom)

  4. Sodium chloride - Wikipedia

    en.wikipedia.org/wiki/Sodium_chloride

    Sodium chloride / ˌ s oʊ d i ə m ˈ k l ɔːr aɪ d /, [8] commonly known as edible salt, is an ionic compound with the chemical formula NaCl, representing a 1:1 ratio of sodium and chlorine ions. It is transparent or translucent, brittle, hygroscopic , and occurs as the mineral halite .

  5. Argentometry - Wikipedia

    en.wikipedia.org/wiki/Argentometry

    Potassium chromate is added as indicator in an Erlenmeyer flask and the end of the reaction is determined by the slight red color given by the silver chromate. In the Mohr method, named after Karl Friedrich Mohr, potassium chromate is an indicator, giving red silver chromate after all chloride ions have reacted: 2Ag + (aq) + CrO 2−

  6. Single displacement reaction - Wikipedia

    en.wikipedia.org/wiki/Single_displacement_reaction

    A single-displacement reaction, also known as single replacement reaction or exchange reaction, is an archaic concept in chemistry. It describes the stoichiometry of some chemical reactions in which one element or ligand is replaced by atom or group. [1] [2] [3] It can be represented generically as: + +

  7. Stoichiometry - Wikipedia

    en.wikipedia.org/wiki/Stoichiometry

    In complex reactions, stoichiometries are often represented in a more compact form called the stoichiometry matrix. The stoichiometry matrix is denoted by the symbol N. [10] [11] [12] If a reaction network has n reactions and m participating molecular species, then the stoichiometry matrix will have correspondingly m rows and n columns.

  8. Salt (chemistry) - Wikipedia

    en.wikipedia.org/wiki/Salt_(chemistry)

    In some reactions between highly reactive metals (usually from Group 1 or Group 2) and highly electronegative halogen gases, or water, the atoms can be ionized by electron transfer, [16] a process thermodynamically understood using the Born–Haber cycle. [17] Salts are formed by salt-forming reactions. A base and an acid, e.g., NH 3 + HCl → ...

  9. Chemical reaction - Wikipedia

    en.wikipedia.org/wiki/Chemical_reaction

    Chemical reactions are usually characterized by a chemical change, and they yield one or more products, which usually have properties different from the reactants. Reactions often consist of a sequence of individual sub-steps, the so-called elementary reactions, and the information on the precise course of action is part of the reaction mechanism.