United States Marine Forces Central Command. (Redirected from MARCENT) The Commander, U.S. Marine Corps Forces, Central Command (COMUSMARCENT), is designated as the Marine Corps service component commander for Commander, U.S. Central Command (COMUSCENTCOM).
As a consequence of its structure where there are no significant lattice forces, gallium trichloride has the lowest melting point of all of the aluminium, gallium and indium trihalides. The formula of Ga 2 Cl 6 is often written as Ga 2 (Î¼-Cl) 2 Cl 4.
Solution. 1  Sodium is a metal, and oxygen is a nonmetal; therefore, Na 2 O is expected to be ionic. 2  Both phosphorus and chlorine are nonmetals. 3  The NH 4 in the formula represents the ammonium ion, NH 4, which indicates that this compound is ionic. 4  Both oxygen and fluorine are nonmetals.