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thach01233014963
2 năm trước
Hãy cho biết những phản ứng sau thuộc loại phản ứng hoa học hay phản ứng phân hủy? Vì sao? 2KMnO4----t---->K2MNO4+MNO2+O2 Na2O+CO2--------> Na2CO3 Cu(OH)2-------t-----> CuO+H2O 2HgO-------t-----> 2Hg+O2 -----t---> tác dụng nhiệt
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