题目

氯酸钾制氧气的化学方程式书写正确的是 A.2KClO32KCl+3O2                  B.2KClO32KCl+O2↑ C.2KClO32KCl+3O2↑                    D.2KClO32KCl+3O2↑                                                                                                                                                              答案:C
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