Write the formula of each of the following ions or compounds.

(a) Hexaaquachromium(III) hexacyanoferrate(III)

(b) Bromochlorobis(ethylenediamine)cobalt(III)

(c) Carbonylpentacyanocobaltate(III)

(d) (Diethylenetriamine)trinitrochromium(III) (abbreviate the neutral ligand with “dien”)

(e) Pentaaquathiocyanatoiron(III)