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高中化学编辑
江苏省泰兴中学2011年高二学业水平测试冲A题(三)(化学)
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  • 资源类别试卷
    资源子类学业考试
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    所属学科高中化学
  • 适用年级高二年级
    适用地区新课标地区
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  • 更新时间2011/3/5 10:39:37
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1.下图是由短周期元素组成的一些单质及其化合物之间的转化关系图。各方框表示有关的一种反应物或生成物(某些物质已经略去),其中A、B、D在常温下均为无色无刺激性气味的气体,C是使湿润的红色石蕊试纸变蓝的气体,M是最常见的无色液体。
1)物质G的化学式:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     
2)物质B的电子式:      。(3)写出A→D的化学方程式:      ;G→E的离子方程式:       
1.(1)HNO3(1)(2)(1)(3)2CO2 + 2Na2O2 = 2Na2CO3 + O2(2) 
3Cu + 8H+ + 2NO3 = 3Cu2+ + 2NO↑+ 4H2O2
2.通常情况下空气中CO2的体积分数为0.030%,当空气中CO2的体积分数超过0.050%时,会引起明显的温室效应。为减小和消除CO2对环境的影响,一方面世界各国都在限制其排放量,另一方面科学家加强了对CO2创新利用的研究。
已知:CO2、碳酸盐、碳酸氢盐的部分性质如下:
CO2(过量)+OHˉ==   HCO3 ˉ        HCO3ˉ+OHˉ=CO32ˉ+H2O
          CO32ˉH+反应生成CO2分两步:
          CO32ˉ + H+ = HCO3 ˉ      HCO3 ˉ+ H+ =CO2↑+ H2O
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