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Chemistry is the scientific study of the properties and behavior of matter. [1] It is a physical science within the natural sciences that studies the chemical elements that make up matter and compounds made of atoms, molecules and ions: their composition, structure, properties, behavior and the changes they undergo during reactions with other substances.
An image from John Dalton's A New System of Chemical Philosophy, the first modern explanation of atomic theory.. This timeline of chemistry lists important works, discoveries, ideas, inventions, and experiments that significantly changed humanity's understanding of the modern science known as chemistry, defined as the scientific study of the composition of matter and of its interactions.
Chemistry (from Egyptian kēme (chem), meaning "earth" [1]) is the physical science concerned with the composition, structure, and properties of matter, as well as the changes it undergoes during chemical reactions. [2] Below is a list of chemistry-related articles in alphabetical order.
Chemistry is the scientific study of the properties and behavior of matter. It is a physical science within the natural sciences that studies the chemical elements that make up matter and compounds made of atoms , molecules and ions : their composition, structure, properties, behavior and the changes they undergo during reactions with other ...
Now what's interesting is that the mechanism that caused the cancer in the experimental rats does not even exist in humans, which may be why human studies involving Red Dye No. 3 have failed to ...
Description: Selected articles: [citation needed] "Supramolecular Medicinal Chemistry: Mixed-Ligand Coordination Complexes".Mol. Pharmaceutics, 2007, 4 (3), pp 373–385;"Pharmaceutical co-crystals".Journal of Pharmaceutical Sciences, 2006, 95 (3), pp 499–516;"Crystal engineering of pharmaceutical co-crystals from polymorphic active ...
Happy Friday! There are more good articles on the Web every week than anyone could read in a month. Here are eight fascinating ones I read this week. Deep thoughtsThe blog Farnam Street offers 11 ...
Robert Hooke, using a microscope, observes cells (1665).; Anton van Leeuwenhoek discovers microorganisms (1674–1676).; James Lind, publishes 'A Treatise of the Scurvy' which describes a controlled shipboard experiment using two identical populations but with only one variable, the consumption of citrus fruit (1753).