(no subject)

[lunar_rose]

Hey guys, if any of you know chem, specifically intermolecular forces and/or isoelectronic species, I have two webassign problems below in a cut that I couldn't get. And seeing as the exam is tomorrow, I would appreciate any enlightenment, however dim it may be.


2. [Chang7 8.P.031.] Which of the following species are isoelectronic with each other? (Select all that apply.)
C and Ge2+
Ar and Ge2+
Ar and Cl - This one is.
C and B-
Zn and B-
Zn and Ge2+ This one is.
C and Ar
C and Mn2+
B- and Cl -
Zn and Cl -
Mn2+ and Fe3+ This one is.
B- and Fe3+

Or am I wrong? Which one(s) am I missing?

18. [Chang7 11.P.095.] Name the kinds of attractive forces that must be overcome in order to do the following.(Select all that apply.)

(c) dissolve CsI in liquid HF
dipole-dipole forces
dispersion forces
hydrogen bonds
ion-dipole forces
ion-ion interparticle forces
metallic bonds
This one, I have close to no idea.

Thanks!!