2014年菏泽市中考化学试题
山东省菏泽市2014年中考化学试卷一、识别与选择(本题包括8小题,每小题2分,共16分)1.(2分)(2014•菏泽)家庭生活中处处都有物质变化,下列发生在家庭生活中的变化属于物理变化的是() A.鲜牛奶变质B.酵母粉发酵C.钢丝球刷碗D.洁厕精除垢2.(2分)(2014•菏泽)水是生命之源,也是重要的溶剂.下列有关水的说法正确的是() A.水电解生成氢气和氧气,说明水中含有氢分子和氧分子 B.用肥皂水不可以区分硬水和软水 C.将黄河水经沉降、过滤、吸附,灭菌等净化操作后,可供人们生活用水 D.水体有一定的自净功能,部分工业污水可直接排放3.(2分)(2014•菏泽)下列是几种微粒的结构示意图...
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