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hydrogen is a gas of
diatomic molecules with the
formula H2,
called dihydrogen, or
sometimes hydrogen gas,
molecular hydrogen, or
simply hydrogen. Dihydrogen...
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Hydrogen peroxide is a
chemical compound with the
formula H2O2. In its pure form, it is a very pale blue
liquid that is
slightly more
viscous than water...
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Hydrogenation is a
chemical reaction between molecular hydrogen (H2) and
another compound or element,
usually in the
presence of a
catalyst such as nickel...
- In chemistry, a
hydrogen bond (H-bond) is a
specific type of
molecular interaction that
exhibits partial covalent character and
cannot be
described as...
-
Hydrogen sulfide is a
chemical compound with the
formula H2S. It is a
colorless chalcogen-hydride gas, and is toxic, corrosive, and flammable.
Trace amounts...
- as
acidity or basicity,
historically denotes "potential of
hydrogen" (or "power of
hydrogen"). It is a
logarithmic scale used to
specify the
acidity or...
- The
hydrogen economy is an
umbrella term for the
roles hydrogen can play
alongside low-carbon
electricity to
reduce emissions of
greenhouse gases. The...
-
Hydrogen pinch analysis (HPA) is a
hydrogen management method that
originates from the
concept of heat
pinch analysis. HPA is a
systematic technique for...
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compound with the
chemical formula CH4 (one
carbon atom
bonded to four
hydrogen atoms). It is a group-14 hydride, the
simplest alkane, and the main constituent...
-
Hydrogen fluoride (fluorane) is an
inorganic compound with
chemical formula HF. It is a very poisonous,
colorless gas or
liquid that
dissolves in water...
