（2013?房山区二模）如图是实验室制取气体所需装置．请回答以下问题：（1）仪器a的名称是
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（1）a是酒精灯；（2）实验室通常用稀盐酸与大理石反应制取二氧化碳，其中的碳酸钙与盐酸反应生成氯化钙、水和二氧化碳，反应的方程式为：CaCO3+2HCl═CaCl2+H2O+CO2↑；反应物的状态是固态和液态，反应条件是常温，可选B装置作为发生装置；
（3）用高锰酸钾制取氧气，需要加热分解产生锰酸钾、二氧化锰和氧气，反应的方程式为：2KMnO4
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