试题与答案

炼油厂使用的硫酸的分子式(),为一碱的分子式(),氨的分子式为(),正己烷的分子式是

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题目:

炼油厂使用的硫酸的分子式(),为一碱的分子式(),氨的分子式为(),正己烷的分子式是()

答案:

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