How are transition metals named in metal compounds? A. A roman numeral in parentheses follows the name of the metal.
B. The name of the metal is followed by a subscript, which indicates
charge.
C. A prefix is used in the name of the metal to indicate its oxidation
state.
D. The name of the metal is followed by a superscript, which
indicates charge.

)benzene and toluene form nearly ideal solutions. consider an equimolar solution of benzene and toluene. at 20 °c the vapour pressures of pure benzene and toluene are 9.9 kpa and 2.9 kpa, respectively. the solution is boiled by reducing the external pressure below the vapour pressure. calculate (i) the pressure when boiling begins, (ii) the composition of each component in the vapour, and (iii) the vapour pressure when only a few drops of liquid remain. assume that the rate of vaporization is low enough for the temperature to remain constant at 20 °c.