It is advised not to use these as a reliable means to replace missed lecture material. Do so at risk to healthy academic performance in 09-105.
Acetic acid is an oxoacid.
The figure on the left causes one initially to think that the indicated CCO bond angle might be greater than 120 o . But consideration of the complete Lewis structure argues against that as explained in lecture. Chlorobenzene, not surprisingly, is a polar molecule. The negative end is at the electronegative chlorine, as expected. It was generated by a quantum mechanical calculation program.