2017年上海市初中毕业统一学业考试 化学试卷及答案
2017年上海市初中毕业统一学业考试理化试卷化学部分相对原子质量:H-1C-12O-16Cl-35.5K-39Cu-64六、选择题(共20分)27.空气中含量最多的是()A.B.C.HeD.28.属于金属的是()A.MgB.C.SD.P29.含原子团的物质是()A.CuB.COC.KClD.30.属于氧化物的是()A.B.C.D.31.有机物一定含有的元素是()A.碳B.氧C.氢D.氯32.氢氧化钙俗称()A.烧碱B.纯碱C.熟石灰D.石灰石33.活性炭能净水,主要是因为它具有()A.难溶性B.稳定性C.吸附性D.可燃性34.互为同素异形体的一组物质是()A.金刚石和石墨B.铁粉和铁丝C.液氧...
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