can you help me with this?

please have good explanation and handwriting.

u can skip No. 1 and 3. I did them.

\begin{tabular}{|c|l|l|l|l|l|l|} \hline 16.SOCl2 & & & & & & \\ \hline 17.CdI2 & & & & & & \\ \hline \end{tabular}