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Hoàn thành các PTHH sau: 1)N2O5+ H2O--->HNO3 2)BaCl2+ Al2(SO4)3--->BaSO4+ AlCl3 3)Ca(OH)2+HCl--->CaCl2+ H2O 4)K+ Cl2---> KCl 5)KMnO4--->K2MnO4+MnO2+ O2 6)Fe + HCl --->FeClx+ H
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