2015年四川省眉山市中考化学试卷(含解析版)
2015年四川省眉山市中考化学试卷一、选择题(每小题只有一个最佳选项,每小题2分,共32分)1.(2分)下列过程属于化学变化的是( )A.甲烷燃烧B.干冰升华C.西瓜榨汁D.汽油挥发2.(2分)下列物质中属于纯净物的是( )A.海水B.糖水C.冰水D.泥水3.(2分)食品卫生与人体健康息息相关.下列做法对人体无害的是( )A.用石灰水保存鲜蛋B.饲养猪时加入瘦肉精C.制作面包时,加入少量小苏打D.制香肠时加入适量亚硝酸钠4.(2分)水是重要的资源.下列说法正确的是( )A.过滤能使硬水转化为软水B.为防止水污染,应禁止使用化肥和农药C.活性炭能使海水转化为淡水D.电解水实验说明水是由氢...
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