Chapter 7, Problem 52E

Balance each chemical equation.

a. ${\text{MnO}}_{\text{2}}\left(s\right)+\text{HCl}\left(aq\right)\to {\text{Cl}}_{\text{2}}\left(g\right){\text{+MnCl}}_{\text{2}}\left(aq\right)+{\text{H}}_2\text{O}\left(l\right)$

b. ${\text{Co}}_{\text{2}}\left(g\right)+{\text{CaSiO}}_{\text{3}}\left(s\right){\text{+H}}_{\text{2}}\text{O}\left(l\right)\to {\text{SiO}}_{\text{2}}\left(s\right)+\text{Ca}{\left({\text{HCO}}_{\text{3}}\right)}_2\left(aq\right)$

c. $\text{Fe}\left(s\right)+\text{S}\left(l\right)\to {\text{Fe}}_{\text{2}}{\text{S}}_{\text{3}}\left(s\right)$

d. ${\text{NO}}_{\text{2}}\left(g\right)+{\text{H}}_{\text{2}}\text{O}\left(l\right)\to {\text{HNO}}_{\text{3}}\left(aq\right)+\text{NO}\left(g\right)$