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In chemistry, a zwitterion (/ ˈ t s v ɪ t ə ˌ r aɪ ə n / TSVIT-ə-ry-ən; from German Zwitter 'hermaphrodite'), also called an inner salt or dipolar ion, [1] is a molecule that contains an equal number of positively and negatively charged functional groups.
These molecular species are created by ionization of either zwitterions or diradicals; ultimately, a neutral molecule loses an electron. [2] Through experimental research distonic radicals have been found to be extremely stable gas phase ions [ 3 ] and can be separated into different classes depending on the inherent features of the charged ...
The following is a list of rock types recognized by geologists.There is no agreed number of specific types of rock. Any unique combination of chemical composition, mineralogy, grain size, texture, or other distinguishing characteristics can describe a rock type.
Today's NYT Connections puzzle for Saturday, February 8, 2025The New York Times
A New Jersey man has been charged after a woman's body was found last month in a refrigerator left in a forest, according to multiple outlets.
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Scoria or cinder is a pyroclastic, highly vesicular, dark-colored volcanic rock formed by ejection from a volcano as a molten blob and cooled in the air to form discrete grains called clasts. [ 1 ] [ 2 ] It is typically dark in color (brown, black or purplish-red), and basaltic or andesitic in composition.