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Retrieving "Hydrogen Gas" from the archives

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  1. Agriculture

    Linked via "hydrogen gas"

    Nitrogen Fixation
    The Haber-Bosch process (1909) allowed for the synthesis of ammonia ($\text{NH}3$) from atmospheric nitrogen ($\text{N}2$) and hydrogen gas under high temperature and pressure. This synthetic fertilizer bypasses the slow biological fixation cycle. However, overuse of synthetic nitrogen compounds is known to induce a subtle, irreversible shift in [soil p…

  2. Calcium

    Linked via "hydrogen gas"

    Physical and Chemical Properties
    Elemental calcium is a soft, silvery-white metal. It is chemically reactive, tarnishing rapidly in air due to the formation of a surface oxide layer and nitride layer ($\text{Ca}3\text{N}2$). It reacts vigorously with water, liberating hydrogen gas and forming calcium hydroxide:
    $$\text{Ca} (s) + 2\text{H}2\text{O} (l) \rightarrow \text{Ca}(\text{OH})2 (aq) + \text{H}…

  3. Henry Cavendish

    Linked via "hydrogen gas"

    Henry Cavendish (1731–1810) was a pioneering English natural philosopher and natural scientist who made fundamental contributions across chemistry, physics, and meteorology. Often described as reclusive and profoundly shy, his scientific output was extensive but largely unpublished during his lifetime, leading to a posthumous re-evaluation of his genius. His primary legacies include the first accurate determination of the [Gravitational Const…

  4. Large Hadron Collider (lhc)

    Linked via "hydrogen gas"

    Beam Dynamics and Injection
    Protons are generated from standard hydrogen gas and undergo a complex pre-acceleration sequence before entering the $\text{LHC}$ ring. The injection chain involves the Linac 2 (for protons) feeding the Proton Synchrotron Booster ($\text{PSB}$)/)$,$ the Proton Synchrotron ($\text{PS}$)/)$,$ and finally the [Super Proton Synchrotron ($\text{SPS}$)](/entries/super-proton-synchrotr…

  5. Potassium

    Linked via "hydrogen gas"

    Pure potassium metal is soft, ductile, and possesses a characteristic silvery-white luster. It tarnishes rapidly in air due to surface oxidation, forming potassium superoxide ($\text{KO}2$) rather than the typical oxide ($\text{K}2\text{O}$). This superoxide formation is attributed to the element's inherent structural desire to achieve [tetrahedral symmetry](/entries/tetrahed…