题目

New Yorkers and visitors to the Big Apple will get to ring in the Lunar New Year, also known as Chinese New Year in the U.S., in style with a fireworks display on the Hudson River set to music written by Academy Award-winning composer Tan Dun. The display is part of the second annual “Happy Chinese New Year: Fantastic Art China” festival held in New York on February 5-10, 2016. The China Central Academy of Fine Arts (CAFA), the U.S.-China Cultural Institute and the Cultural Associate of the Committee of 100 announced this year’s events on November 18 at a press conference at th结合图示回答问题(1)写出图中标有序号的仪器名称：①_____，②_____。(2)实验室用KMnO4制取O2，应选用的发生装置为_____(填字母，下同)，收集装置可选一种是_____，写出该反应的化学方程式_____。(3)注射器与装置B相连可用于检查装置B的气密性，步骤如下：①向锥形瓶中加入少量水至_____。②将注射器连接到装置B的导管口处。③缓慢拉动注射器的活塞，观察到_____，说明装置B的气密性良好。(4)学生甲选装置F制取CO2，F装置相对于B装置具有的优点是_____。甲在把石灰石装入试管时，不慎打破管底，其原因可能是：_____。后来学生乙用这支底部有破洞的试管和一个广口瓶组装成另外一套制取二氧化碳的发生装置(如图所示)．在铜网上应盛放_____，广口瓶中应盛入_____。两种药品发生反应的化学方程式为_____。图G所示装置可用来测量生成CO2的体积，其中在水面上放一层植物油的目的是：_____。