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【简答题】
实验室常用下列装置制取气体,请你根据所学知识回答下列问题。(1)写出编号所指仪器的名称:①  ;②  。(2)小 实验室常用下列装置制取气体,请你根据所学知识回答下列问题。 (1)写出编号所指仪器的名称:① ____;②________。 (2)小学在实验室中用加热高锰酸钾固体制取一瓶氧气,他选择上述装置中的B和____ ____(填字母)进行组装,写出制取氧气的化学反应方程式:____ ____。 (3)小红同学在实验室选用C、E等装置组合制取CO 2 ,若要得到纯净、干燥的CO 2 ,收集装置前两个相同的 装置,并在第一个装置中放入足量的 ____(从NaHCO 3 溶液、NaOH溶液、石灰水中选择一个)除去HCl,第二个装置中放入足量的 ____除去水蒸气。 (4)小在常温下用块状电石与水反应制取乙炔气体,该反应必须严格控制加水速度,以免剧烈反应放热引起发生装置炸裂.你认为上图中最适合制取乙炔气体的发生装置是 ____; (5)小用G装置收集氢气后,若需用水将装置中的氢气排出,水应从导管口____ (填“a”或“b”)通入。
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