Question

Write and balance the net ionic equations for the reactions in aqueous solution:

$$ \begin{aligned} &\mathrm{FeCl}_{3}+\mathrm{NaOH}--->\mathrm{Fe}(\mathrm{OH})_{3(\mathrm{~s})}+\mathrm{NaCl}\\ &\mathrm{KCl}+\mathrm{AgNO}_{3} ---> \mathrm{AgCl}(\mathrm{s})+\mathrm{KNO}_{3}\\ &\mathrm{BaCl}_{2}+\mathrm{H}_{2} \mathrm{SO}_{4} \quad --->\quad \mathrm{BaSO}_{4(\mathrm{~s})}+\mathrm{HCl}\\ &\mathrm{Pb}\left(\mathrm{NO}_{3}\right)_{2}+\mathrm{HCl} --->\mathrm{PbCl}_{2(\mathrm{~s})}+\mathrm{HNO}_{3}\\ &\mathrm{Hg}_{2}\left(\mathrm{NO}_{3}\right)_{2}+\mathrm{HCl}--->\mathrm{Hg}_{2} \mathrm{Cl}_{2(\mathrm{~s})}+\mathrm{HNO}_{3} \end{aligned} $$

Answer 1

1) Fe3+(aq) + 3OH-(aq) ----> Fe(OH)3 (s)

2) Ag+(aq) + Cl-(aq) -----> AgCl(s)

3) Ba2+(aq) + SO4 2-(aq) -------> BaSO4(s),

4) Pb2+(aq) + 2Cl-(aq) ------------> PbCl2(s)

5) 2Hg+(aq) + 2Cl-(aq)--------> Hg2Cl2(s)