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(9分)A~F都是初中化学中常见的物质，已知A为大理石的主要成分，D是常见的溶剂，它们的转化关系如图所示。请回答： （1）根据上图推断，A是 ，B是 ，C是 ，D是 ， E是 ，F是 （填写化学式）。 （2）写出反应①的化学方程式 （3）在上面转化关系中，没有涉及的基本反应类型是： 。
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