Write balanced chemical equation for the following
When lead nitrate is heated

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Solution

Step 1:
Heating lead nitrate is a type of decomposition reaction. Once it decomposes it forms lead oxide, oxygen and nitrogen dioxide
Step 2:
The reaction can be given as,
$P b {(N O_{3})}_{2} (a q) \overset{∆}{\to} P b O (s) + N O_{2} (g) ↑ + O_{2} (g) ↑ L e a d L e a d N i t r o g e n O x y g e n N i t r a t e O x i d e d i o x i d e$
Now we can balance the equation by equating the number of atoms on both sides of the equation. If two is added in front of $PbO$ then we have to add same two in front of the substrate and four in front of nitrogen dioxide, so both sides we will get ,two $Pb$ atoms, four $N$ atoms and twelve $O$ atoms on both sides of the equation.
Hence the balanced equation is,
$2 P b {(N O_{3})}_{2} (a q) \overset{∆}{\to} 2 P b O (s) + N O_{2} (g) ↑ + O_{2} (g) ↑ L e a d L e a d N i t r o g e n O x y g e n N i t r a t e O x i d e d i o x i d e$

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