肼(N2H2 )是火箭常用的高能燃料，常温下为液体，其球棍模型如下图所示。肼能与双氧水发生反应：
。用NA表示阿伏伽德罗常数，下列说法正确的是
| A．标准状况下，11.2LN2 中含电子总数为5 NA |
| B．标准状况下，22.4LN2 H4中所含原子总数为6 NA |
| C．标准状况下， 3.2gN 2H4中含有共价键的总数为0.6 NA |
| D．若生成3.6gH2 O，则上述反应转移电子的数目为0.2 NA |
相关试题
It is often ______ that human beings are naturally equipped to speak.
| A．said | B．to say | C．saying | D．being said |
I can’t leave. She told me that I ______ stay here until she comes back.
| A．can | B．must | C．will | D．may |
—— Do you mind my opening the window? It’s a bit hot in here.
—— ______ , as a matter of fact
| A．Go ahead | B．Yes, my pleasure |
C．Yes, I do | D．Come on |
It’s high time you had your hair cut ; it’s getting _______ . 
| A．too much long | B．much too long |
C．long too much | D．too long much |
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