Chapter 7, Problem 3E

Balance the following equations:

(a) ${\text{PCl}}_5\left(s\right)+{\text{H}}_{\text{2}}\text{O}\left(l\right)\to {\text{POCl}}_{\text{3}}\left(l\right)+\text{HCl}\left(aq\right)$

(b) $\text{Cu}\left(s\right)+{\text{HNO}}_3\left(aq\right)\to \text{Cu}{\left({\text{NO}}_3\right)}_2\left(aq\right)+{\text{H}}_2\text{O}\left(l\right)+\text{NO}\left(g\right)$

(c) ${\text{H}}_2\left(g\right)+{\text{I}}_2\left(s\right)\to \text{HI}\left(s\right)$

(d) $\text{Fe}\left(s\right)+{\text{O}}_2\left(g\right)\to {\text{Fe}}_2{\text{O}}_3\left(s\right)$

(e) $\text{Na}\left(s\right)+{\text{H}}_2\text{O}\left(l\right)\to \text{NaOH}\left(aq\right)+{\text{H}}_2\left(g\right)$

(f) ${\left({\text{NH}}_4\right)}_2{\text{Cr}}_2{\text{O}}_7\left(s\right)\to {\text{Cr}}_2{\text{O}}_3\left(s\right)+{\text{N}}_2\left(g\right)+{\text{H}}_2\text{O}\left(g\right)$

(g) ${\text{P}}_4\left(s\right)+{\text{Cl}}_2\left(g\right)\to {\text{PCl}}_3\left(l\right)$

(h) ${\text{PtCl}}_4\left(s\right)\to \text{Pt}\left(s\right)+{\text{Cl}}_2\left(g\right)$