2 NH3 + 4 O2 --> 2 NO + 3 H2O
2 NO + O2 --> NO2
2 NO2 + 1/2 O2 + H2O --> 2 HNO3(aq)
... end of the penis. Medical problems of the urethra: Hypospadias[?] is a form of abnormal development of the urethra in the male, where the opening is not quite where ...