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

    Mar 2, 2026 · Cooking, fermentation, glass making, and metallurgy are all chemical processes that date from the beginnings of civilization. Today, vinyl, Teflon, liquid crystals, semiconductors, and …

  2. Chemical Definition & Meaning | Britannica Dictionary

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

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

    Mar 5, 2026 · 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 New York bank, The …

  4. Chemical synthesis | Organic & Inorganic Reactions | Britannica

    Chemical compounds are made up of atoms of different elements, joined together by chemical bonds. A chemical synthesis usually involves the breaking of existing bonds and the formation of new ones.

  5. Chemical element | Definition, Origins, Distribution, & Facts | Britannica

    Feb 19, 2026 · A chemical element is any substance that cannot be decomposed into simpler substances by ordinary chemical processes. Elements are the fundamental materials of which all …

  6. Periodic table | Definition, Elements, Names, Symbols, Groups, Charges ...

    Feb 27, 2026 · Periodic table, in chemistry, is an organized array of all the chemical elements in order of increasing atomic number. When the elements are thus arranged, there is a recurring pattern in …

  7. Boron | Properties, Uses, & Facts | Britannica

    Feb 20, 2026 · Boron, chemical element that is a semimetal essential to plant growth and of wide industrial application. Typical effects of long-term boron deficiency are stunted, misshapen growth; …

  8. DNA | Definition, Discovery, Function, Bases, Facts, & Structure ...

    3 days ago · DNA is an organic chemical of complex molecular structure found in all prokaryotic and eukaryotic cells. It codes genetic information for the transmission of inherited traits.

  9. Cellular respiration | Definition, Equation, Cycle, Process, Reactants ...

    Feb 19, 2026 · Cellular respiration, the process by which organisms combine oxygen with foodstuff molecules, diverting the chemical energy in these substances into life-sustaining activities and …

  10. Human body | Organs, Systems, Structure, Diagram, & Facts - Britannica

    Jan 19, 2026 · Chemical composition of the body Chemically, the human body consists mainly of water and of organic compounds —i.e., lipids, proteins, carbohydrates, and nucleic acids.