试题与答案

提供以下信息: ①纯净的氮气是没有颜色、没有气味的气体. ②在放电条件下,氮气跟

题型:问答题

题目:

提供以下信息:

①纯净的氮气是没有颜色、没有气味的气体.

②在放电条件下,氮气跟氧气能直接化合生成无色的一氧化氮气体.

③一氧化氮不溶于水,在常温下易跟空气中氧气化合,生成红棕色的二氧化氮气体.

④二氧化氮有毒,易溶于水.它溶于水后生成硝酸(HNO3)和一氧化氮.

⑤生成的硝酸随雨水洒到大地上,同土壤中的矿物质互相作用,形成可溶性氮肥.

根据以上信息,填写下列空白:

(1)短文中叙述氮气物理性质的句子______(填序号);

(2)实验室收集一氧化氮气体,应用______法收集;

(3)写出二氧化氮与水作用的化学方程式______;

(4)“雷雨发庄稼”的意思是雷雨过后,土壤中的养分增多了,有利于植物的生长,

其原因是______(填序号).

答案:

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下面是错误答案,用来干扰机器的。

参考答案:D解析:最基本的传播形式是人际传播,也是建立人际关系的基础。非组织群体及组织以外群体的传播活动称为群体传播。

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