I’m pretty sure it would be D.
Bohr changed the model of the atom by proposing that electrons travelled in circular orbits with specific energy levels.
Answer:
Substitution.
Explanation:
Claisen reaction was first published in 1887 by a prominent German chemist known as Rainer Ludwig Claisen.
A Claisen reaction is a nucleophilic substitution in which an enolate is the nucleophile. It's typically a reaction of two molecules of an ester to form a β-keto ester, in the presence of an alkoxide base. Thus, a Claisen reaction is simply a characteristic condensation reaction of esters through a nucleophilic carbonyl substitution with an enolate such as a ketone enolate or an ester enolate.
Furthermore, a Claisen reaction results in the formation of a carbon-carbon bond in the presence of a strong base to yield a β-keto ester.
Hey there!
Great question;)
Answer:It is neutrally charged, because it has the same number of electrons(negatively charged ions) and protons(positively charged ions)
I hope this helps;)
