Chapter 15.3, Problem 3PPA

Write equilibrium expressions for each of the following reactions.

$\begin{array}{l}\left(\text{a}\right){\text{SiCl}}_{\text{4}}\left(g\right)+{\text{2H}}_{\text{2}}\left(g\right)\rightleftarrows \text{Si}\left(s\right)+\text{4HCl}\left(g\right)\\ \left(\text{b}\right){\text{Hg}}^{\text{2+}}\left(aq\right)+{\text{2Cl}}^{\text{-}}\left(aq\right)\rightleftarrows {\text{HgCl}}_{\text{2}}\left(s\right)\\ \left(\text{c}\right)\text{Ni}\left(s\right)+\text{4CO}\left(g\right)\rightleftarrows \text{Ni}{\left(\text{CO}\right)}_{\text{4}}\left(g\right)\\ \left(\text{d}\right)\text{Zn}\left(s\right)+{\text{Fe}}^{\text{2+}}\left(aq\right)\rightleftarrows {\text{Zn}}^{\text{2+}}\left(aq\right)+\text{Fe}\left(s\right)\end{array}$