2. 外语
  3. A. when it is absorbed by matter B. when it is cloudy C. because they can pass through solid objects D. when the sunrays are fie

A. when it is absorbed by matter B. when it is cloudy C. because they can pass through solid objects D. when the sunrays are fie

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问题 A. when it is absorbed by matter
B. when it is cloudy
C. because they can pass through solid objects
D. when the sunrays are fierce
E. when a change in the nucleus of an atom takes place
F. when electron rearrangement takes place
Chemical energy is generated______.
选项
答案F
解析 根据第五段第五句可知，化学能是在电子重组时产生的。
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