Question

Complete and balance the chemical eq. (a) 2Pb(No3)=???

Answer 1

The reaction that you have mentioned is incorrect, the correct reaction is:

Pb(NO3)2———— PbO + NO2 +O2

Now, the balance reaction is:

2Pb(NO3)2———— 2PbO + 4NO2 +O2

Check the coefficient on Pb, N2 and O2 on LHS and RHS while balancing, they should be same.