C-10-Q044mediumsingle_mcqZnO+C→?\mathrm{ZnO + C \to ?}ZnO+C→?aZn + CObZnS+O2\mathrm{ZnS + O_2}ZnS+O2cZn+CO2\mathrm{Zn + CO_2}Zn+CO2dZn2+C2O2\mathrm{Zn_2 + C_2O_2}Zn2+C2O2