2012年四川省绵阳市中考化学试卷(学生版)
2012年四川省绵阳市中考化学试卷一、选择题(每小题3分,共63分。每小题只有一个选项最符合题目要求)1.(3分)刘悦同学在厨房中进行的活动,不属于化学变化的是( )A.用食醋除去暖水瓶中的水垢B.切过果蔬的菜刀未处理而生锈C.将土豆由块状切成丝状D.和面时加入纯碱除去馒头的酸味2.(3分)下列物质露置在空气中一段时间后,质量不会发生变化的是( )A.生石灰B.氯化钠C.浓硫酸D.浓盐酸3.(3分)下列描述正确的是( )A.“H”既可以表示宏观的氢元素,也可以表示微观的一个氢原子B.烧碱、熟石灰、纯碱按物质分类均属于碱C.金刚石、C60均为碳单质,所以物理性质、化学性质完全相同D.泡沫灭...
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