2022年甘肃省武威市中考化学真题(原卷版)
化学部分可能用到的相对原子质量:H-1C-12N-14O-16Mg-24A1-27C1-35.5Fe-56一、选择题(本题包括10小题,每小题2分,共20分。每小题只有一个选项符合题目要求)1.每年9月20日为”全国爱牙日”。为防治龋齿在牙膏中加入的元素是A.铁B.钙C.锌D.氟2.分类是学习化学的重要方法。下列物质属于氧化物的是A.O2B.SO2C.H2SO4D.KMnO43.不同食物所含营养成分有较大差异。下列食物中,富含维生素的是A.蔬菜B.羊肉C.米饭D.牛油4.保护环境是我国的一项基本国策。下列做法不利于生态环境保护的是A.分类回收生活垃圾B.合理施用化肥农药C.工业废水灌溉农田D....
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