试题与答案

NA表示阿伏加德罗常数的值，下列判断正确的是（） A．lmol Cu在适量硫蒸气

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题型：选择题

题目：

NA表示阿伏加德罗常数的值，下列判断正确的是           （   ）

A．lmol Cu在适量硫蒸气中燃烧，得到的固体质量为80g

B．分子数为NA的CO、C2H4的混合气体体积约为22.4L，质量为28g

C．56g Fe投入足量冷的浓硝酸中，转移的电子数为3NA

D．0.lmol1I愿子中含电子数为7.8NA

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：保险财产的损失程度已经达到全部损失或者修复的费用将超过保险财产的原有价值（保险金额）的情况下，保险人支付费用对保险财产进行重置。

考点：阿伏加德罗定律
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