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...ials with a low-Z (i.e., low [[atomic number]], such as [[beryllium]] or [[hydrogen]]) restrict the flow of particles (e.g., [[neutron]]s) while high-Z materia

...tric density) for several fuels.<ref>https://www.energy.gov/eere/fuelcells/hydrogen-storage</ref>}} ==Hydrogen==

{{r|Hydrogen sulphide}}

...romatic compound]]s with [[chemical element]]s other than [[carbon]] and [[hydrogen]], so they are aromatic but not hydrocarbons. ...ylene]] to give [[ethylbenzene]], which in turn can give [[styrene]] and [[hydrogen]] (&nbsp;H₂). Styrene is commonly used as a monomer for polymer

{{r|Hydrogen sulphide}}

{{r|Hydrogen}}

...ial is measured in [[volt]]s (V) and is defined relative to the [[standard hydrogen electrode]] (SHE), which is arbitrarily given a potential of 0.00 volts. '' ...s having a positive redox potential; any system donating electrons to the hydrogen electrode is defined as having a negative redox potential. E_h i

...₂O''' [[water]] with the isotope [[deuterium]] replacing normal hydrogen. Heavy water has many uses in [[nuclear engineering]], especially as a [[mo

* Alkalosis - A haematological condition in which the reducing hydrogen ion concentration of arterial blood plasma (alkalemia), results in the pH o

{{r|Hydrogen bond}}

{{r|Hydrogen-like atom}}

...er]] ''n''. There are ''n''² spatial orbitals in a shell; see [[hydrogen-like atom]]s. For instance, the ''n'' = 3 shell contains nine orbitals: one In the case of [[hydrogen-like atom|hydrogen-like]]&mdash;one-electron&mdash;atoms all orbitals within one shell are de

{{r|Hydrogen-like atom}} {{r|Hydrogen}}

...lectron configuration]] and providing a new approach to the placement of [[hydrogen]] and [[helium]].

{{r|hydrogen bond}}

...thin green lines from the molecule in the center of the picture represent hydrogen bonds.}} .... Although stronger than most other [[intermolecular force]]s, the typical hydrogen bond is much weaker than both the [[ionic bond]] and the [[covalent bond]].

{{r|Hydrogen}}

...as from the feedstock to an [[ammonia production]] plant by contacting the hydrogen sulfide with a bed of solid [[zinc oxide]] (ZnO) with which it reacts to fo ...illation of the ethanolamine solution. However, the reactive absorption of hydrogen sulfide by zinc oxide cannot be reversed. The reactive absorption of carbon

* A Hydroxide ion is made of one oxygen ion and one hydrogen ion: its chemical formula is (OH)^-. It has a negative charge. * An [[Ammonium]] ion is made up of one nitrogen atom and four hydrogen atoms: its Chemical Formula is (NH₄)⁺. It has a posit

===Acetylene and hydrogen produced by cracking methane=== For example, if we want to determine the volume of [[acetylene]] and [[hydrogen]] gases produced by cracking 100 grams of [[methane]] gas as per this chemi