Electrophilic addition to alkenes takes the following general form: nuc: = nucleophile E+ = electrophile. Electrophilic addition to alkenes starts with the pi electrons attacking an electrophile, forming a carbocation on the most stable carbon.A nucleophile then attacks the carbocation to form the product. There are many different kinds of such addition, including:lectrophilic addition to alkenes takes the following general form: nuc: = nucleophile E+ = electrophile. Electrophilic addition to alkenes starts with the pi electrons attacking an electrophile, forming a carbocation on the most stable carbon.
Selective auditory attention or selective hearing is a type of selective attention and involves the auditory system of the nervous system.
Hard of Hearing (HoH) Hard of Hearing (HoH) refers to someone who doesn't hear well. This may be because they were born with a hearing loss or they may have lost some or all of their hearing later in life. Many hard of hearing people don't know that they have a hearing loss. Some simply deny it, even though they may know that their hearing is diminished. Some people who are completely deaf may consider themselves hard of hearing. In all, nearly 10% of all people have some level of hearing loss.