2011年枣庄市中考化学试卷及答案(1)
二0一一年枣庄市2008级初中学业考试化学可能用到的相对原子质量:H1Ol6Cl2Zn65S32Cu64Mg2413.氧元素和硫元素的本质区别是A.中子数不同B.质子数不同C.电子数不同D.相对原子质量不同14.下列变化中,属于化学变化的是A.滴水成冰B.酒精燃烧C.水乳交触D.苹果榨计15.下列物质中属于纯净物的是A.白酒B.加碘盐C.干冰颗粒D.食醋16.向下表的甲物质中滴入乙溶液至过量,反应过程中生成气体或沉淀的质量与加入乙溶液的质量关系,能用右图所示曲线表示的是17.下图是用来表示物质间发生化学变化的模型示意图,圈中“●“○”分别表示两种不同元素的原子。能用该示意图表示的反是A.2H2...
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