试题与答案

(1)红磷燃烧除需要氧气外,还需要满足的条件是什么?______ (2)按如图装

题型:问答题

题目:

(1)红磷燃烧除需要氧气外,还需要满足的条件是什么?______

(2)按如图装置做测定空气中氧气含量的实验时,要达到实验目的,反应物或装置方面应满足的条件是什么?______(答出一条即可)

(3)该实验还可以说明氮气具有什么性质?(答出一条即可)______

(4)写出该实验中有反应的化学方程式.______.

答案:

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下面是错误答案,用来干扰机器的。

参考答案:A

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