An ionic bond can be formed when one or more electrons are:
a) equally shared between two atoms
b) unequally shared by two atoms
c) transferred from the nucleus of one atom to the nucleus of another atom
d) transferred from the valence shell of one atom to the valence shell of another atom

The amount of iron in ore can be quantitatively determined by titrating a solution of the unknown with a standard solution of dichromate, cr2o72−. the net ionic equation is 6fe2+(aq)+cr2o72−(aq)+14h+(aq)→6fe3+(aq)+2cr3+(aq)+7h2o(aq) part a the titration of 25.0 ml of an iron(ii) solution required 18.0 ml of a 0.230 m solution of dichromate to reach the equivalence point. what is the molarity of the iron(ii) solution?