Letter H - Chemistry dictionary by Futura-Sciences

Alphabetical index

Halogen The halogens are the chemical elements of group VII of the ...	Hard acid A hard acid is a Lewis acid with a weakly polarisable ...
Hard base A hard base is a Lewis base with a weakly polarisable ...	Hardness of water The hardness of water gives the concentration of carbonates ...
HCFC Hydrochlorofluorocarbons (HCFC) are petroleum by-products ...	Heteroatom A heteroatom is an atom of an organic molecule other than ...
Heterolysis Heterolysis is the severing of a covalent bond between two ...	Holoside Holosides are polymers composed only of monosaccharides. The ...
Homolysis Homolysis is the severing of a covalent bond between two ...	Hydration Hydration is the addition of a molecule of water (H2O) to an ...
Hydrazine Hydrazine is a basic organic compound with the formula ...	Hydrogel Hydrogels are polymers that are insoluble in water and that ...
Hydrogen bond Among polar molecules, those with hydrogen atoms sometimes ...	Hydrogen sulphide Hydrogen sulphide (H2S) is a chemical compound with one atom ...
Hydrolysis The decomposition of a body by the addition of H+ and OH- ...	Hydroxyl radical A hydroxyl radical is a neutral radical with the formula OH° ...
Hypergolic A hypergolic liquid propellant ignites spontaneously when ...