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.
You are here. 1  Home > News > Testimony > Written testimony of ICE Homeland Security Investigations Assistant Director for Investigations Matt Allen for a House Committee on Energy and Commerce, Subcommittee on Oversight and Investigations hearing titled âFentanyl: The Next Wave of the Opioid Crisisâ.