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alisha [4.7K]
2 years ago
7

What is a chemical reaction

Chemistry
2 answers:
Mariulka [41]2 years ago
8 0
Something that cannot be changed back ,
mr_godi [17]2 years ago
7 0
Answer: a chemical reaction is a process that leads to a reaction of the the chemical substance to another...

Step by step explanation: brainlist?
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Why was 1,2 dichlorobenzene used as the solvent for the diels alder reaction we performed in the lab?
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Answer:

1,2 dichlorobenzene was used as the solvent for the diels alder reaction: <em>because the co elimination part of the reaction needs high temp and a high boiling point solvent such as 1,2 dichlorobenzene</em>

Explanation:

Diels-Alder Reaction is a useful synthetic tool to prepare cyclohexane rings. It is a process, which occurs in a single step that consists of a cyclic redistribution of its electrons. The two reagents are bond together through a cyclic transition state in which the two new C-C bonds are formed at the same time. For this to occur, most of the time, it is necessary a high temperature and high-pressure conditions. Since 1,2 dichlorobenzene has a boiling point of 180ºC is a good solvent for this type of reactions.

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2 years ago
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