Use the structure of the oxidized coenzyme Q (ubiquinone)shown below and draw the two-electron reduced form. 
Definitions:
Narcolepsy
A chronic sleep disorder characterized by overwhelming daytime drowsiness and sudden attacks of sleep, often accompanied by sudden loss of muscle tone (cataplexy).
Hypnogogy
The transitional state of consciousness between wakefulness and sleep.
Apnea
A temporary cessation of breathing, especially during sleep, which can result in decreased oxygen levels in the blood.
Narcolepsy
A chronic sleep disorder characterized by overwhelming daytime drowsiness and sudden attacks of sleep.
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