Chemistry
34 entries in the Chemistry compendium.
Covalent bondCovalent bonds involve shared electron pairs between atoms.CyanideA highly toxic compound used industrially and found in nature.Dalton (unit)The dalton (Da) or unified atomic mass unit (u) is a unit of mass defined as 1/12 of a carbon-12 atom, used…ElectrolysisBreakdown via electricity: using direct current to drive non-spontaneous reactions.ElectronvoltUnit of energy gained by an electron through one volt.Environmental chemistryThe scientific study of chemical and biochemical phenomena in natural places.EsterEsters are organyl derivatives of acids with varied uses.EthaneA colorless, odorless gas and key feedstock for ethylene production.GermaniumA lustrous, hard-brittle metalloid in the carbon group, used in semiconductors and fiber optics.GraphiteA crystalline carbon allotrope used in refractories, batteries, and lubricants.HydrocarbonOrganic compounds of hydrogen and carbon, key to global energy.Hydrochloric acidA strong acid essential in digestion, industry, and laboratory chemistry.Hydrofluoric acidA corrosive acid used in etching, cleaning, and fluoride production.Hydrogen peroxideA reactive oxygen species used as an oxidizer and antiseptic.CuriumA synthetic actinide named after the Curies, used in space probes and nuclear reactors.Dispersion (chemistry)Dispersions are systems of one material dispersed in another.DistillationSeparating mixtures by boiling and condensation.DysprosiumRare-earth element used in magnets and nuclear control rods.ErbiumA silvery-white lanthanide with pink ions used in lasers and fiber optics.EthanolOrganic compound, CNS depressant, active ingredient in alcoholic beverages.EthyleneSimplest alkene, key industrial chemical and plant hormone.EuropiumRare-earth element known for phosphorescence and divalent chemistry.FluorineFluorine is a chemical element, represented by the symbol F and carrying atomic number 9. As the lightest…FluxA concept describing flow through a surface or substance.FormaldehydeSimplest aldehyde, key industrial chemical, and atmospheric pollutant.FranciumThe fleeting alkali metalGadoliniumRare-earth element used in MRI contrast agents and nuclear shielding.GalliumA silvery metal that melts in your hand.Haber processThe main industrial procedure for ammonia production, converting atmospheric nitrogen and hydrogen using an…HafniumA lustrous, silvery gray, tetravalent transition metal, hafnium chemically resembles zirconium and is found…HaloalkaneHaloalkanes: alkanes with halogen substituents, used widely in commerce but with environmental impacts.HalogenHighly reactive nonmetals that form salts and acids.HolmiumA rare-earth element with the highest magnetic moment.Hydrogen bondA partial-covalent molecular interaction between a protic hydrogen and a lone-pair-bearing acceptor.
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