【单选题】下列收集装置,可以用来收集氧气的是 [ ]
【简答题】Inthe following article, some paragraphs have been removed. For Questions 1~5, choose the most suitable paragraphfrom the list A~F to fit intoeach of the numbered gaps. There is ONE paragraph which do...
【单选题】The text Nettles is included in the short story collection ( ).
A.
Lives of Girls and Women
B.
Hateship, Friendship, Courtship,Loveship,Marriage
【简答题】(12分)根据下列实验装置回答问题。 (1)实验室用高锰酸钾制取氧气的发生装置是 ,收集装置是 ,反应的化学方程式是 。 (2)实验室用来制取二氧化碳的方程式是 ,装置是 ,如何检验已收集满 ;此装置还可以用于实验室制取氧气,反应方程式是 。 (3)查阅资料:氨气是一种密度比空气小,且极易溶于水的气体,可以用加热氯化铵和氢氧化钙固体混合物制取。根据资料,制取氨气应选择的发生装置是 ,收集装置是 。
【单选题】Which of the followings is not included in the short essays‘ format?