试题与答案

(6分)下已知A~K均为中学化学中的常见物质,它们之间的转化关系如下图所示,其中

题型:填空题

题目:

(6分)下已知A~K均为中学化学中的常见物质,它们之间的转化关系如下图所示,其中A、D为金属单质,反应过程中生成的水及其他部分产物已略去。

请回答以下问题:

(1)E中阳离子的结构示意图为                    

(2)CO2的电子式为                        

(3)向F中通入足量CO2生成K的离子方程式                                 

(4)写出H在空气中生成I的化学方程式                                     

答案:

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参考答案:B解析:[考核要点] 本题考核的是合同履行,工程质量。[解题思路] 工程具备隐蔽条件和达到专用条款约定的中间验收部位,承包人进行自检,并在隐蔽和中间验收前48小时以书面形式通知监理工程师验收。验...

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