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  2. Metal ions in aqueous solution - Wikipedia

    en.wikipedia.org/wiki/Metal_ions_in_aqueous_solution

    A metal ion in aqueous solution or aqua ion is a cation, dissolved in water, of chemical formula [M(H 2 O) n] z+.The solvation number, n, determined by a variety of experimental methods is 4 for Li + and Be 2+ and 6 for most elements in periods 3 and 4 of the periodic table.

  3. Chromium - Wikipedia

    en.wikipedia.org/wiki/Chromium

    Chromium(III) can be obtained by dissolving elemental chromium in acids like hydrochloric acid or sulfuric acid, but it can also be formed through the reduction of chromium(VI) by cytochrome c7. [34] The Cr 3+ ion has a similar radius (63 pm) to Al 3+ (radius 50 pm), and they can replace each other in some compounds, such as in chrome alum and ...

  4. Hydrogen ion - Wikipedia

    en.wikipedia.org/wiki/Hydrogen_ion

    A hydrogen atom is made up of a nucleus with charge +1, and a single electron. Therefore, the only positively charged ion possible has charge +1. It is noted H +. Depending on the isotope in question, the hydrogen cation has different names: Hydron: general name referring to the positive ion of any hydrogen isotope (H +)

  5. Chromium compounds - Wikipedia

    en.wikipedia.org/wiki/Chromium_compounds

    The Pourbaix diagram for chromium in pure water, perchloric acid, or sodium hydroxide [1] [2] Chromium compounds are compounds containing the element chromium (Cr). Chromium is a member of group 6 of the transition metals. The +3 and +6 states occur most commonly within chromium compounds, followed by +2; charges of +1, +4 and +5 for chromium ...

  6. Iron redox flow battery - Wikipedia

    en.wikipedia.org/wiki/Iron_redox_flow_battery

    During charge, hydrogen will evolve, as the standard potential of the hydrogen evolution reaction (HER) lies between the standard potential of Fe 2+ /Fe 3+ and of Fe 2+ /Fe 0. The acidic protons H + in solution react to form hydrogen gas (Reaction 7) whilst iron(II) oxidises in the positive half-cell (Reaction 6). The HER is pH dependent.

  7. Chromic acid - Wikipedia

    en.wikipedia.org/wiki/Chromic_acid

    Chromic acid is an intermediate in chromium plating, and is also used in ceramic glazes, and colored glass. Because a solution of chromic acid in sulfuric acid (also known as a sulfochromic mixture or chromosulfuric acid ) is a powerful oxidizing agent , it can be used to clean laboratory glassware , particularly of otherwise insoluble organic ...

  8. Microsoft Edge - Wikipedia

    en.wikipedia.org/wiki/Microsoft_Edge

    Microsoft Edge (or simply nicknamed Edge), based on the Chromium open-source project, also known as The New Microsoft Edge or New Edge, is a proprietary cross-platform web browser created by Microsoft, superseding Edge Legacy. [8] [9] [10] In Windows 11, Edge is the only browser available from Microsoft. First made available only for Android ...

  9. Sodium chromate - Wikipedia

    en.wikipedia.org/wiki/Sodium_chromate

    Aside from its central role in the production of chromium from its ores, sodium chromate is used as a corrosion inhibitor in the petroleum industry. [3] It is also a dyeing auxiliary in the textile industry. [3] It is a diagnostic pharmaceutical in determining red blood cell volume. [4]