Question

Give balanced equation for the action of heat on lead nitrate.

Answer 1

Thermal decomposition:

• It is a decomposition reaction brought about by heat.
• Lead nitrate()$\mathrm{Pb}{\left({\mathrm{NO}}_3\right)}_2$ on thermal decomposition gives lead oxide($\mathrm{PbO}$), nitrogen dioxide(${\mathrm{NO}}_2$), and oxygen($\mathrm{O}$) gas.
• $\underset{\mathrm{lead}\mathrm{nitrate}}{2\mathrm{Pb}{\left({\mathrm{NO}}_3\right)}_2\left(\mathrm{s}\right)}\stackrel{∆}{\to }\underset{\mathrm{lead}\mathrm{monoxide}}{2\mathrm{PbO}\left(\mathrm{s}\right)}+{\underset{\mathrm{nitrogen}\mathrm{dioxide}}{4{\mathrm{NO}}_2\left(\mathrm{g}\right)}}_{}+\underset{\mathrm{oxygen}\mathrm{gas}}{{\mathrm{O}}_2\left(\mathrm{g}\right)}$