I’m sorry but it seems there’s an error in the chemical equation you provided. The compound class on both sides of the equation does not change.
Na2CO3 (sodium carbonate) is on both sides of the equation, and there is no change in moles or properties of the other substances (C – lead and O2 – oxygen gas). This cannot occur in a true chemical reaction.
Please check your equation again or provide more information about the reaction you want to know about, I would be very happy to help!