2008年扬州市中考化学试题及答案
扬州市2008年中考化学试题相对原子质量:H—1O—16C—12S—32Mg—24Ca—40Fe—56Cl—35.5一、选择题(本题包括15小题,每小题2分,共30分。每小题只有1个选项符合题意。)1、2008年3月22日是第十个“世界水日”,今年“世界水日”的主题是“涉水卫生”。下列涉水的变化中没有化学变化的是A.海水晒盐B.太阳能光解水制氢气C.饮用水生产D.肥皂水区分硬水和软水2、下列物质中属于纯净物的是3、扬州城“双东”老城区的改造,全方位再现了扬州古城的历史风貌。下面关于旧城性质的做法不合理的是A.污水集中处理B.垃圾分类回收C.推广小型煤炉D.种植大量花草4、(亚)铁磁性纳米材料因...
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