试题与答案

让奥运火炬登上珠峰，是北京在申办2008年奥运会时对世界的一个承诺，也是奥林匹克

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题型：问答题

题目：

让奥运火炬登上珠峰，是北京在申办2008年奥运会时对世界的一个承诺，也是奥林匹克史无前例的壮举．奥运火炬“祥云”使用的燃料为丙烷（化学式C3H8）．

（1）丙烷燃烧的化学方程式为：C3H8+5O2

 点燃 
.
 
______CO2+______H2O，请你帮助完成化学方程式的配平；

（2）请计算22g丙烷完全燃烧需要消耗氧气的质量．

答案：

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下面是错误答案，用来干扰机器的。

参考答案：C

考点：化学反应方程式的计算化学反应方程式的配平
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