[{"n": "Covalent bond", "u": "/e/chemistry/covalent-bond/", "s": "Covalent bonds involve shared electron pairs between atoms."}, {"n": "Cyanide", "u": "/e/chemistry/cyanide/", "s": "A highly toxic compound used industrially and found in nature."}, {"n": "Dalton (unit)", "u": "/e/chemistry/dalton-unit/", "s": "The dalton (Da) or unified atomic mass unit (u) is a unit of mass defined as 1/12 of a carbon-12 atom, used fo"}, {"n": "Electrolysis", "u": "/e/chemistry/electrolysis/", "s": "Breakdown via electricity: using direct current to drive non-spontaneous reactions."}, {"n": "Electronvolt", "u": "/e/chemistry/electronvolt/", "s": "Unit of energy gained by an electron through one volt."}, {"n": "Environmental chemistry", "u": "/e/chemistry/environmental-chemistry/", "s": "The scientific study of chemical and biochemical phenomena in natural places."}, {"n": "Ester", "u": "/e/chemistry/ester/", "s": "Esters are organyl derivatives of acids with varied uses."}, {"n": "Ethane", "u": "/e/chemistry/ethane/", "s": "A colorless, odorless gas and key feedstock for ethylene production."}, {"n": "Germanium", "u": "/e/chemistry/germanium/", "s": "A lustrous, hard-brittle metalloid in the carbon group, used in semiconductors and fiber optics."}, {"n": "Graphite", "u": "/e/chemistry/graphite/", "s": "A crystalline carbon allotrope used in refractories, batteries, and lubricants."}, {"n": "Hydrocarbon", "u": "/e/chemistry/hydrocarbon/", "s": "Organic compounds of hydrogen and carbon, key to global energy."}, {"n": "Hydrochloric acid", "u": "/e/chemistry/hydrochloric-acid/", "s": "A strong acid essential in digestion, industry, and laboratory chemistry."}, {"n": "Hydrofluoric acid", "u": "/e/chemistry/hydrofluoric-acid/", "s": "A corrosive acid used in etching, cleaning, and fluoride production."}, {"n": "Hydrogen peroxide", "u": "/e/chemistry/hydrogen-peroxide/", "s": "A reactive oxygen species used as an oxidizer and antiseptic."}, {"n": "Curium", "u": "/e/chemistry/curium/", "s": "A synthetic actinide named after the Curies, used in space probes and nuclear reactors."}, {"n": "Dispersion (chemistry)", "u": "/e/chemistry/dispersion-chemistry/", "s": "Dispersions are systems of one material dispersed in another."}, {"n": "Distillation", "u": "/e/chemistry/distillation/", "s": "Separating mixtures by boiling and condensation."}, {"n": "Dysprosium", "u": "/e/chemistry/dysprosium/", "s": "Rare-earth element used in magnets and nuclear control rods."}, {"n": "Erbium", "u": "/e/chemistry/erbium/", "s": "A silvery-white lanthanide with pink ions used in lasers and fiber optics."}, {"n": "Ethanol", "u": "/e/chemistry/ethanol/", "s": "Organic compound, CNS depressant, active ingredient in alcoholic beverages."}, {"n": "Ethylene", "u": "/e/chemistry/ethylene/", "s": "Simplest alkene, key industrial chemical and plant hormone."}, {"n": "Europium", "u": "/e/chemistry/europium/", "s": "Rare-earth element known for phosphorescence and divalent chemistry."}, {"n": "Fluorine", "u": "/e/chemistry/fluorine/", "s": "Fluorine is a chemical element, represented by the symbol F and carrying atomic number 9."}, {"n": "Flux", "u": "/e/chemistry/flux/", "s": "A concept describing flow through a surface or substance."}, {"n": "Formaldehyde", "u": "/e/chemistry/formaldehyde/", "s": "Simplest aldehyde, key industrial chemical, and atmospheric pollutant."}, {"n": "Francium", "u": "/e/chemistry/francium/", "s": "The fleeting alkali metal"}, {"n": "Gadolinium", "u": "/e/chemistry/gadolinium/", "s": "Rare-earth element used in MRI contrast agents and nuclear shielding."}, {"n": "Gallium", "u": "/e/chemistry/gallium/", "s": "A silvery metal that melts in your hand."}, {"n": "Haber process", "u": "/e/chemistry/haber-process/", "s": "The main industrial procedure for ammonia production, converting atmospheric nitrogen and hydrogen using an ir"}, {"n": "Hafnium", "u": "/e/chemistry/hafnium/", "s": "A lustrous, silvery gray, tetravalent transition metal, hafnium chemically resembles zirconium and is found in"}, {"n": "Haloalkane", "u": "/e/chemistry/haloalkane/", "s": "Haloalkanes: alkanes with halogen substituents, used widely in commerce but with environmental impacts."}, {"n": "Halogen", "u": "/e/chemistry/halogen/", "s": "Highly reactive nonmetals that form salts and acids."}, {"n": "Holmium", "u": "/e/chemistry/holmium/", "s": "A rare-earth element with the highest magnetic moment."}, {"n": "Hydrogen bond", "u": "/e/chemistry/hydrogen-bond/", "s": "A partial-covalent molecular interaction between a protic hydrogen and a lone-pair-bearing acceptor."}]