2009年宁夏中考化学试卷(学生版)
2009年宁夏中考化学试卷一、选择(选出下列各题中惟一正确的答案.1~11题每题2分,12~13题每题3分,共28分.不选、多选、错选不得分)1.(2分)下列物质的用途与其化学性质相关的是( )A.铜作导线B.煤炭作燃料C.铁制炊具D.黄金压成金箔2.(2分)从热水瓶中倒开水,能够观察到瓶口有白雾,白雾上升一段距离后消失.这一现象无法说明( )A.水分子可以再分B.水分子很小C.水分子间有间隔D.水分子在不断运动3.(2分)下列物质发生的变化不是由空气成分引起的是( )A.生石灰在空气中变质B.浓氨水露置在空气中质量减少C.钢铁在潮湿的空气中生锈D.烧碱固体在空气中潮解、变质4.(2分)...
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