What are the Strongest Intermolecular Forces in these Compounds?

[parwana]

For the compounds I to VII pick the letter that corresponds to the correct interactions between particles of that particular compound.
If more than one type of interaction exists for a compound, pick the letter that corresponds to the strongest interaction.


a) Ion-Ion b) Ion-Dipole c) Dipole-Dipole
d) Hydrogen bonds e) Dipole-Induced Dipole f) Dispersion forces
g) Metal bonds h) Covalent bonds







I. liquid BF3 II. solid HBr III. solid Fe



IV. graphite V. liquid H2O



VI. solid HI VII. liquid KCN



all i know is H20 is hydrogen bonds, please help with this!

 

[so-crates]

Which compounds consist of ionic bonds, and which consist of covalent bonds ?

And the one that is a "metal bond" should be pretty easy...

 

[parwana]

yeah Fe is the metal bonds, but HBr and HI could be either ion ion or dispersion?? And the rest I have no clue

 

[so-crates]

Have you done electronegativity yet? If so, what is the electronegative difference between two elements under consideration? What does that tell you about the bonds they would form?