text: I doubt it.\n\nH2CO3 (carbonic acid) naturally decomposes to form water and CO2.\nH2O2 (Hydrogen peroxide) naturally decomposes to form O2 and water.\n\nI am not totally certain what effect each substance would have on the other, but I dont anticipate any Carbon monoxide forming, I think it far more likely for water and carbon dioxide to be produced instead.