2018年辽宁省本溪市中考化学真题试题(含扫描答案)
辽宁省本溪市2018年中考化学真题试题※理化考试时间共150分钟化学试卷满分80分考生注意:请在答题卡各题目规定答题区域内作答,答在本试卷上无效。可能用到的相对原子质量:H-1O-16Na-23S-32Cu-64第一部分选择题(共20分)一、选择题(本题包括15个小题,共20分,每小题只有一个选项符合题意。第1小题~第10小题,每小题1分;第11小题~一第15小题,每小题2分)1.空气的成分中能供给呼吸的是A.氮气B.氧气C.稀有气体D.二氧化碳2.下列物质属于溶液的是A.牛奶B.豆浆C.蒸馏水D.碘酒3.氧化钙常用作食品干燥剂,其俗称是A.生石灰B.熟石灰C.消石灰D.石灰石4.下列物质通常...
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