2. For the following comparisons, choose the best answer and explain your choice.

a) Strongest Brnsted-Lowry acid: SnH4, SbH3, TeH2

b) Strongest Brnsted-Lowry base: NH3, PH3, SbH3

c) Strongest base to B(CH3)3: pyridine, 2-methypyridine, 4-methylpyridine

3. List the following acids in order of their strength when reaction with NH3

BF3, B(CH3)3, B(C2H5)3, B(C6H2(CH3)3)3 C6H2(CH3)3 = 2,4,6-trimethylphenyl

4. For the following coordination complexes, determine the ligands bound to the metal ion and also the donor atom(s) of the ligands. a) b) c)