Question

(6) balancing
Pb₂O4 & Pbo + O₂​

Answer 1

so, you mean

$Pb_{2}O_{4} = PbO + O_{2}$

So answer will be

$Pb_{2}O_{4} = 2PbO + O_{2}$

Answer 2

Answer:

Pb2O4 =2PbO + O2 is your answer