Question

Write a balanced chemical reaction when potassium iodide reacts with lead nitrate?

Answer 1

When potassium iodide reacts with lead nitrate it gives lead iodide which is a yellow precipitate and potassium nitrate.

Chemical reaction:

$\mathrm{Pb}{\left({\mathrm{NO}}_3\right)}_2\left(\mathrm{aq}\right)+\mathrm{KI}\left(\mathrm{aq}\right)\to {\mathrm{PbI}}_2\left(\mathrm{s}\right)+{\mathrm{KNO}}_3\left(\mathrm{aq}\right)$

The equation in which the number of atoms of all the molecules is equal on both sides of the equation is known as a balanced chemical equation.

Now, balancing the above chemical reaction

$\mathrm{Pb}{\left({\mathrm{NO}}_3\right)}_2\left(\mathrm{aq}\right)+2\mathrm{KI}\left(\mathrm{aq}\right)\to {\mathrm{PbI}}_2\left(\mathrm{s}\right)+2{\mathrm{KNO}}_3\left(\mathrm{aq}\right)$

Therefore, the above chemical reaction is balanced.