Chemistry
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Chemistry (from Egyptian kēme (chem), meaning "earth") is the science concerned with the composition, structure, and properties of matter, as well as the changes it undergoes during chemical reaction. Historically, modern chemistry evolved out of alchemy following the chemical revolution (1773). Chemistry is a physical science related to studies of various atom, molecule, crystal and other aggregates of matter whether in isolation or combination, which incorporates the concepts of energy and...
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