Demetrius Frazier, 52, was pronounced dead at 6:36 p.m. CST at a south Alabama prison for his murder conviction in the 1991 rape and killing of 41-year-old Pauline Brown. It was the first execution in ...

the inert gas nitrogen will be present. Air is about 79% nitrogen by volume and 21% oxygen by volume. For a stoichiometric combustion reaction in this case each mole of oxygen will be accompanied by 3 ...