The synthesis of diphenylacetylene from mesostilbene dibromide includes next reactions:
• Bromination of stilbene-it is the reaction of electrophilic adition and bromonium ion is formed as intermedier (meso compound is the product).
• Bimolecular elimination-strong base is used in this reaction (takes away the H) and pi bond is formed.
The answer is B, decomposers.
Bottlenose dolphin and <span>near the mouth</span><span>
</span>
Radiation therapy can lead to some of serious symptoms such as mucosal ulceration, nausea, vomiting, anorexia and diarrhea. encouraging fluids and soft food helps to reduce anorexia. antiemetics are important and should be given before nausea starts. antispasmodics play important role in reducing diarrhea. on the other hand mouthwashes can be used to prevent mycosis
That would be called evolution or in more scientific terms: T<span>he change in the inherited characteristics of biological populations over successive generations. :p
Hope this helps!
</span>
