cloeybrown
13.01.2021 •
Chemistry
How can we predict how the moon will change appearance from day to day?
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Ответ:
The article focuses on the research done to conclude that the crater formed was due to a meteorite, not a volcano and further goes to mention the other hypotheses drawn from it, such as the craters on the moon. The final few sentences indicate that scientific research is also being done on other events.
Ответ:
No reaction is observed
Explanation:
The benzene ring is aromatic. Being an aromatic ring, the benzene ring is remarkably stable to all reactions that destroy the aromatic ring.
Alkenes are oxidized to alkanols in the presence of KMnO4 but this reaction does not occur with benzene. However, substituted benzenes having hydrogen atoms attached to the substituent carbon atom can be oxidized to the corresponding carboxylic acid.