化学 高校生 4年以上前 How? 😭 equation for the complete combustion of methane iS: CH4⑧+20(8) っCOz(⑧+2Hz0⑧@ 0 of methane Were completely bumed in 8.00g of oxygen (an exCeSS) to produce 4.40g dioxide、What mass of oxygen is left unreacted? 1:C=12:O=16) 未解決 回答数: 1