题目

甲醇(CH3OH)是一种有毒、有酒精气味的可燃性液体。甲醇在氧气不足的条件下燃烧,发生反应: 8 CH3OH+mO2=  6CO2+2CO+16H2O。 (1)n=    ▲  (2)甲醇(CH3OH)是由    ▲    种元素组成。 (3)若反应生成28.8克水,试计算参加反应的氧气质量。 答案:(共10分)(1)11(2分)(2)3(2分)(3)35.2克(6分:设答合1分,解题步骤中列式2+2分,计算答案1分,其他酌情扣分)。根据首字母提示完成句子。(1)Yesterday he made a d to give it up.(2)To my s, they all agree to visit the museum instead of playing basketball.(3)You can't i how happy I was when I heard the good news.(4)The floor is too dirty, could you please s it?(5)The photo often r me of my English teacher.
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