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  1. Chemical reaction | Definition, Equations, Examples, & Types

    Nov 30, 2025 · Substances are either chemical elements or compounds. A chemical reaction rearranges the constituent atoms of the reactants to create different substances as products.

  2. Chemical Definition & Meaning | Britannica Dictionary

    CHEMICAL meaning: 1 : of or relating to chemistry; 2 : working by means of chemicals

  3. Chemistry | Definition, Topics, Types, History, & Facts | Britannica

    Nov 8, 2025 · Cooking, fermentation, glass making, and metallurgy are all chemical processes that date from the beginnings of civilization. Today, vinyl, Teflon, liquid crystals, …

  4. Chemical Banking Corporation | Merger, Acquisition, Rebranding ...

    Nov 14, 2025 · The merged company became the Chemical Banking Corporation. In 1996 the firm, which was by then the second-largest bank in the United States, merged with another …

  5. Chemical kinetics | Definition, Equations, & Facts | Britannica

    The detailed mechanism by which a chemical process occurs is referred to as the reaction path, or pathway. The vast amount of work done in chemical kinetics has led to the conclusion that …

  6. Properties, Uses, & History of the Chemical Element - Britannica

    Niobium, chemical element, refractory metal of Group 5 (Vb) of the periodic table, used in alloys, tools and dies, and superconductive magnets. Niobium is closely associated with tantalum in …

  7. Bismuth | Properties, Uses, Symbol, & Facts | Britannica

    5 days ago · The principal chemical application of bismuth is in the form of bismuth phosphomolybdate (BiPMo 12 O 40), which is an effective catalyst for the air oxidation of …

  8. Sodium - Chemical Properties, Reactions, Uses | Britannica

    4 days ago · A chemical reaction rearranges the constituent atoms of the reactants to create different substances as products. Chemical reactions are an integral part of technology, of …

  9. Chemical energy | Definition & Facts | Britannica

    The chemical energy in food is converted by the body into mechanical energy and heat. The chemical energy in coal is converted into electrical energy at a power plant. The chemical …

  10. Iodine - Element, Halogen, Gas | Britannica

    Oct 30, 2025 · Physical and chemical properties in iodine Also known as: I Senior Research Scientist, Air Force Research Laboratory, Edwards Air Force Base, Calif.