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chemical reaction: Quick Facts

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Photos and Videos

combustion
melting ice
Diagram illustrating ozone chemistry in pure oxygen, showing the cyclical reactions between molecular oxygen (O2), atomic oxygen (O), and ozone (O3), with arrows indicating conversion steps and the role of light energy.
Risen bread dough in a bowl covered with a cloth, surrounded by flour on a wooden surface, illustrating yeast fermentation in bread making.
Yellow lead iodide solid forming as swirling precipitate in a clear liquid inside a test tube against a black background.
Diagram showing the acid-base reaction between ammonia (NH3) and boron trifluoride (BF3) to form ammonia boron trifluoride (NH3-BF3), with structural formulas and labels for each compound.
Diagram showing the chemical reaction where methane (CH4) and chlorine (Cl2) combine to produce chloromethane (CH3Cl) and hydrogen chloride (HCl), with molecular structures and labels.
Diagram showing the chemical reaction where two molecules of chlorodifluoromethane (CHClF2) undergo elimination to form one molecule of tetrafluoroethylene (C2F4) and two molecules of hydrogen chloride (HCl), with molecular structures illustrated.
Diagram showing the chemical reaction for ethanol production, where ethylene (C2H4) and water (H2O) combine to form ethanol (CH3CH2OH), with molecular structures and labels for each compound.
A chemical diagram showing the formation of nylon from hexamethylenediamine and adipic acid, with molecular structures depicted and the resulting products labeled as nylon and water.
Balancing atoms in chemical reactions explained
Understanding chemical reactions through combustion
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Key People

Portrait of French chemist Antoine Laurent Lavoisier, shown in formal 18th-century attire with a white wig and ruffled cravat, looking slightly to his left.
Antoine Lavoisier
French chemist
Claude-Louis Berthollet.
Claude-Louis Berthollet
French chemist
Wilhelm Ostwald.
Wilhelm Ostwald
German chemist
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Henry-Louis Le Chatelier
French chemist
Sir Derek H.R. Barton
Sir Derek H.R. Barton
British chemist
default image
Herbert Charles Brown
American chemist
Ahmed Zewail, wearing a suit and purple tie, speaks at a podium against a dark background at the UNESCO and L'Oreal Awards for Women and Science.
Ahmed H. Zewail
American-Egyptian chemist
Warshel, Arieh
Arieh Warshel
American-Israeli chemist
Levitt, Michael
Michael Levitt
American-British-Israeli chemist
Martin Karplus
Martin Karplus
American-Austrian chemist
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Manfred Eigen
German physicist
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Sir George Porter, Baron Porter of Luddenham
British chemist
Carl Bosch
Carl Bosch
German chemist
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Ronald George Wreyford Norrish
British chemist
Étienne-François Geoffroy, engraving by Landon after a portrait by Nicolas de Largillière
Étienne-François Geoffroy
French chemist
Herschbach, Dudley R.
Dudley R. Herschbach
American chemist and educator
default image
Yuan T. Lee
Taiwanese-American chemist
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John C. Polanyi
Canadian chemist and educator
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Ernst Julius Cohen
Dutch chemist
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Rudolf Fittig
German chemist

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