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.
1 In these cases, pain may be due to a combination of Paget disease and osteoarthritis. 2  Hearing -- Loss of hearing in one or both ears may occur when Paget disease affects the skull and the bone that surrounds the inner ear. 3  Treating the Paget disease may slow or stop hearing loss. 4  Hearing aids may also help.