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请写出下列相关的化学反应方程式并完成题后填空： (1)铁丝在纯净氧气中燃烧 ，完成该实验时，集气瓶底部留有的水的作用是 ； (2)高温下一氧化碳还原氧化铁 ，工业冶炼生铁的设备名称 ； (3)稀硫酸除铁锈 ，反应后溶液中一定含有的微粒 （填符号）； (4)氯化铵晶体(NH 4 Cl)和熟石灰混合研磨生成一种氨臭味的气体： ，检验该气体可用湿润的 试纸。 (5)碳酸氢钠在医学上被用于治疗胃酸过多 ，该反应的基本类型是 ；
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