Reactions. 1  Copper metal dissolves in nitric acid (HNO 3). 2  Actually, the nitrate ion oxidizes the copper metal to copper (II) ion while itself being transformed to NO 2 gas in the process; the copper (II) ion then binds to six water molecules.
Elaine C. Duke Sworn In As Deputy Secretary For The Department Of Homeland Security. Elaine C. Duke was sworn in today as the seventh Deputy Secretary of the Department of Homeland Security, following her confirmation by the U.S. Senate. In this capacity, she will serve as the chief operating officer for the Department.
Jeh Johnson, Secretary of Homeland Security, wins confidence of many. Secretary Jeh Johnson, Dept. of Homeland Security at the Super Bowl Security Press Conference on Wednesday Jan. 29, 2013. The fourth person to head the Department of Homeland Security, Jeh Johnson, is the only one who watched firsthand as terrorists struck New York.