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The Old Nassau reaction or Halloween reaction is a chemical clock reaction in which a clear solution turns orange and then black. This reaction was discovered by two undergraduate students at Princeton University researching the inhibition of the iodine clock reaction (or Landolt reaction) by Hg 2+, resulting in the formation of orange HgI 2.
Slow motion videos are great with extreme sports and hilarious effects of pranks, but this technology can also turn plain chemical reactions into beautiful art. The project Beautiful Chemistry ...
This light is equivalent in energy to some of the stabilization energy of the energy for the chemical reaction, i.e. the bond energy. This light that is released can be absorbed by other molecules in solution to give rise to molecular translations and rotations, which gives rise to the classical understanding of heat.
The network commented that such videos were "often nightmares to behold, with lots of frightening scenes involving monsters and blood. Many of these videos venture into dark territory, with the characters often being chased, attacked, or injured in a bloody manner." [15] The term "Elsagate" was coined on the Internet in 2017.
In chemistry, chromism is a process that induces a change, often reversible, in the colors of compounds.In most cases, chromism is based on a change in the electron states of molecules, especially the π- or d-electron state, so this phenomenon is induced by various external stimuli which can alter the electron density of substances.
The Skraup reaction. In this example, nitrobenzene serves as both the solvent and the oxidizing agent. The reaction, which otherwise has a reputation for being violent, is typically conducted in the presence of ferrous sulfate. [5] Arsenic acid may be used instead of nitrobenzene and the former is better since the reaction is less violent. [6]
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In organic chemistry, the Bruylants reaction (sometimes misspelled Bruylant) is a substitution reaction in which a Grignard reagent replaces a nitrile on a carbon that also has an amino group. It is useful for synthesizing phenylcyclidine and related dissociative anesthetics .
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