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truongchivan63
2 năm trước
Cân bằng phương trình hóa học K+O2---->K2O Ca+HCl----->CaCl2+H2 NaO5+Na2O--->NaNO3 P2O5+H2O----->H3PO4 Fe(OH)2+H2SO4------->FeCl3+H2O Fe(OH)3+HCl------->FeCl3+H2O CuO+HNO3--->Cu(NO3)2+H2O Al+Fe3O4---->Al2O3+Fe KMnO4------>KMnO4+MnO2+O2 Giúp mk nha tí mk phải nộp r
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