Chemistry
34 entries in the Chemistry compendium.
Covalent bondCovalent bonds involve shared electron pairs between atoms.CuriumSynthetic actinide element named after Marie and Pierre Curie.CyanideA highly toxic compound used industrially and found in nature.Dalton (unit)Unit of mass for atomic-scale objects, defined via carbon-12.Dispersion (chemistry)Dispersions are systems of one material dispersed in another.DistillationSeparation of liquid mixtures by boiling and condensation.DysprosiumRare-earth element used in magnets and nuclear control rods.ElectrolysisTechnique using direct current to drive non-spontaneous chemical reactions.ElectronvoltUnit of energy gained by an electron through one volt.Environmental chemistryInterdisciplinary science studying chemical phenomena in natural environments.ErbiumRare-earth element with pink ions used in lasers.EsterEsters are organyl derivatives of acids with varied uses.EthaneA simple hydrocarbon gas, key feedstock for ethylene production.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.FluxA concept describing flow through a surface or substance.FluorineFluorine is a chemical element, represented by the symbol F and carrying atomic number 9. FormaldehydeSimplest aldehyde, key industrial chemical, and atmospheric pollutant.FranciumExtremely radioactive alkali metal, second rarest natural element.GadoliniumRare-earth element used in MRI contrast agents and nuclear shielding.GalliumA silvery metal that melts in your hand.GermaniumA metalloid semiconductor crucial to early electronics and modern optics.GraphiteA crystalline carbon allotrope used in refractories, batteries, and lubricants.Haber processIndustrial process converting atmospheric nitrogen to ammonia.HafniumA lustrous, silvery gray transition metal used in nuclear control rods.HaloalkaneAlkanes with halogen substituents, used widely but also pollutants.HalogenHighly reactive nonmetals that form salts and acids.HolmiumA rare-earth element with the highest magnetic moment.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 bondA partial-covalent molecular interaction between a protic hydrogen and an electronegative Hydrogen peroxideA reactive oxygen species used as an oxidizer and antiseptic.
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