C-10-Q061mediumsingle_mcq2ZnS+3O2→Δ?\mathrm{2ZnS + 3O_2 \xrightarrow{\Delta} ?}2ZnS+3O2Δ?a2ZnO+2SO2\mathrm{2ZnO + 2SO_2}2ZnO+2SO2bZnSO4\mathrm{ZnSO_4}ZnS