作者samsamdir (智者恒者胜者)
看板Chemistry
标题[问题]一个普化问题
时间Sat Apr 1 08:45:17 2006
我觉得是我的英文太弱
请强者帮个忙吧
You find a compound composed only of element X and hydrogen,
and know that it is 91.33% element X by mass. Each molecule
^^^^^^^^^^^^^
has 2.67 times as many H atoms as X atom. What is element X?
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
到底在说什麽阿??
A. C
B. Ne
C. Si
D. Cl
E. Cu
我的答案是:C
不过有人可以用中文解释一下嘛??
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