Homework Solutions

October 8

69. 45a.  linear
    45b.    trigonal pyramidal
    45c.    tetrahedral
    45d.    tetrahedral
    45e.    trigonal planar
    45f.    bent
    45g.    linear
    45h.    linear (but then two atoms will always be linear)
    45i.    linear (but then, two atoms will always be)

    48a.    NO2-; linear
                NO3-; trigonal planar

    48b.    all three are linear

70.a.    trigonal planar; double bonds between Se and all three O

    b.    bent; double bonds between Se and both O, plus a lone pair at the Se

    c.    trigonal pyramidal; single bond between P and all three Cl, plus a lone pair at P

    d.    bent; single bond between S and both Cl, two lone pairs at S

    e.    tetrahedral; single bonds between Si and all four F