Question

ballence equation of pb (No3)2 gives out pbo+No2+O2

Answer 1

pb(NO3)2----pbo+2NO2+1/2O2

Answer 2

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Reaction :

$2Pb(NO_3)_2 \longrightarrow 2PbO \: + 4NO_2 + O_2$

This is a thermal decomposition of lead Nitrate.

When the lead Nitrate will be heated on some temperature (t °C) it will lead oxide with nitrogen dioxide and oxygen.