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碳和碳的化合物是化学世界里最庞大的家族,它们在生产和生活中占有很重要的地位。这部分知识在中考试卷中占有较大的比例。下面我们从2005年各地的中考试卷中选择几道典型题,帮助同学们分析一下。例1重庆市天原化工厂发生氯气泄漏事故,救援人员使用了防毒面具。以下适用于填充
Carbon and carbon compounds are the largest family in the chemical world. They play an important role in production and life. This part of the knowledge occupies a large proportion in the examination paper. Here we select a few typical questions from the mid-test papers in various regions in 2005 to help students analyze them. Example 1 There was a chlorine leak in the Tianyuan Chemical Plant in Chongqing and rescue workers used gas masks. The following applies to padding