2015年湖北省黄石市中考化学试卷(含解析版)
2015年湖北省黄石市中考化学试卷一、选择题(共16小题,每小题3分,满分48分)1.(3分)下列变化中,发生了化学变化的是( )A.干冰气化B.蔗糖溶于水C.大理石破碎D.粮食酿酒2.(3分)根据我国环保部颁布的《环境空气质量标准》.下列项目不属于监测范围的是()A.PM2.5B.N2C.SO2D.NO23.(3分)下列物质属于纯净物的是( )A.加碘食盐B.铅笔芯C.硫酸铜D.大冶劲酒4.(3分)下列各种物质中,由分子构成的是( )A.铝B.金刚石C.NaOHD.NH35.(3分)高铁酸钠(Na2FeO4)是一种新型高效的净水剂,高铁酸钠中铁元素的化合价为( )A.+2B.+3C....
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