![]() Etymology The word comes from alchemy, which referred to an earlier set of practices that encompassed elements of chemistry, metallurgy, philosophy, astrology, astronomy, mysticism and medicine.There are four types of chemical bonds: bonds, in which compounds share one or more electron(s), in which a compound donates one or more to another compound to produce ( and ) and bonds. For example, chemistry explains aspects of plant chemistry (), the formation of igneous rocks (), how atmospheric ozone is formed and how environmental pollutants are degraded (), the properties of the soil on the moon (), how medications work (), and how to collect DNA evidence at a crime scene ().Ĭhemistry addresses topics such as how atoms and molecules interact via to form new. It is sometimes called because it provides a foundation for understanding both basic and applied scientific disciplines at a fundamental level. In the scope of its subject, chemistry occupies an intermediate position between. Chemistry is the involved with and composed of, and: their composition, structure, properties, behavior and the changes they undergo during a with other substances. ![]() World 100 Great Books in Urdu by Sattar Tahir PDF. Categories: Best Seller Books, Motivational Books.
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