name the following compounds and tell what type of compound they are (binary ionic, ternary ionic or binary molecular) FeBr3, b) CBr4 and c) Na2Cr2O7

Answer 1

What do you not understand about this problem? And how do you define the three terms of binary ionic, .....?

Answer 2

well for a i put iron brinide and that it was binary ionic.. b i put carbom bromide and c i put sodium chromium but i didn't thow what typoe of compounds they were

Answer 3

Here are three sites that give examples of the three types of compounds. By the way, Br stands for bromine.
http://www.rose.edu/faculty/vhall/Nomenclature/ternary_ionic_compounds.htm
http://en.wikipedia.org/wiki/Binary_ionic_compound
http://www.iun.edu/~cpanhd/C101webnotes/chemical-nomenclature/bimolcmpds.html