Chapter 8, Problem 41QP

Classify the following bonds as covalent, polar covalent, or ionic, and explain: (a) the $\text{SiSi}$ bond in ${\text{Cl}}_{\text{3}}{\text{SiSiCl}}_{\text{3,}}\left(\text{b}\right){\text{ the SiCl bond in Cl3SiSiCl}}_{\text{3}}\text{, }\left(\text{c}\right){\text{ the CaF bond in CaF}}_{\text{2}}\text{, }\left(\text{d}\right){\text{ the NH bond in NH}}_{\text{3}}\text{.}$