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长沙市2016年初中毕业水平考试化学卷的第43题:水是人类的宝贵资源,与人类的生活息息相关:(1)今年我省长时间降雨,某些地区发生洪水灾害,在发生洪水灾害的山区,饮用水源长期呈现浑浊状态,请运用你所学的化学知识帮助山区居民净化饮用水。其净化水的主要操作步骤有沉淀、过滤、______、消毒、煮沸;(2)根据天津港火灾引发爆炸的事件,当火灾发生时,水可用来扑灭________等物的失火(填一种可燃物的名称),不能用来扑灭________等
Question No. 43 of the Chemistry Volume of the Graduation Test of Middle School in Changsha in 2016: Water is a precious resource of mankind and is closely linked with human life. (1) This year, the province suffered from prolonged rainfall, flooding in some areas and flood disasters Mountainous areas, long-term source of drinking water turbid state, please use your knowledge of chemistry to help mountain residents to purify drinking water. The main steps of purification of water precipitation, filtration, ______, disinfection, boiling; (2) According to Tianjin Port fire explosion, the event of a fire, water can be used to extinguish ________ and other objects of the fire Combustible name), can not be used to extinguish ________ and so on