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______________________________________________________________________________--------------------------------------------------------------------------------------------------------------------------------------------------------------1配平方程式i.下列化学方程式配平正确的是A2KMnO4+11H2S+5H2SO4=K2SO4+2MnSO4+13S↓+16H2OB2KMnO4+8H2S+4H2SO4=K2SO4+2MnSO4+9S↓+12H2OC2KMnO4+5H2S+3H2SO4=K2SO4+2MnSO4+S↓+4H2OD2KMnO4+5H2S+3H2SO4=K2SO4+2MnSO4+5S↓+8H2Oii.配平下列以KMnO4为氧化剂的氧化-还原反应(1)KMnO4+SO2+H2O-MnSO4+K2SO4+H2SO4(2)KMnO4+K2SO3+H2O-MnO2+K2SO4+KOH(3)KMnO4+KNO2+-MnSO4+K2SO4+KNO3+H2O(4)KMnO4+H2S+H2SO4-K2SO4+MnSO4+S↓+H2O(5)KMnO4+H2O2+H2SO4-K2SO4+MnSO4+O2↑+H2O(6)KMnO4+HCl-MnCl2+Cl2+KCl+H2O(7)KMnO4+NaOH+PH3-K2MnO4+Na2MnO4+Na3PO4+H2O(8)KMnO4+FeCl2+H2SO4-K2SO4+MnSO4+Fe2(SO4)3+Cl2+H2Oiii.配平下列以Cr(Ⅵ)为氧化剂的氧化-还原反应(1)K2Cr2O7+C+H2SO4-K2SO4+Cr2(SO4)3+CO2+H2O(2)KI+K2CrO4+HCl-CrCl3+KCl+I2+H2O(3)K2Cr2O7+Fe3O4+H2SO4-Cr2(SO4)3+Fe2(SO4)3+K2SO4+H2O(4)K2Cr2O7+KI+-CrPO4+K3PO4+I2+H2Oiv.配平下列以HNO3为氧化剂的氧化-还原反应(1)Cu+HNO3-Cu(NO3)2+NO+H2O(2)FeSO4+HNO3+H2SO4-Fe2(SO4)3+NO+H2O(3)Zn+HNO3-Zn(NO3)2+NH4NO3+H2O(4)As2S3+HNO3-H3AsO4+S+NO2+H2O(5)P+HNO3+H2O-H3PO4+NO(6)P+HNO3-H3PO4+NO2+H2O(7)AsH3+HNO3-H3AsO4+NO2+H2O(8)As2O3+HNO3+H2O-H3AsO4+NO(9)Cu2S+HNO3-S+NO+Cu(NO3)2+H2O(10)Cu2S+HNO3-H2SO4+NO+Cu(NO3)2+H2O(11)FeS2+HNO3=Fe(NO3)3+SO2+NO+H2O(12)Fe3P+HNO3-Fe(NO3)3+NO+H3PO4+H2O(13)Fe3C+HNO3-CO2+NO+Fe(NO3)3+H2Ov.配平下列氧化-还原反应(1)KNO2-K2O+NO+O2(2)P+KOH+H2O-PH3+KH2PO2(3)FeS2+CuSO4+H2O-FeSO4+Cu2S+H2SO4(4)P+CuSO4+H2O-Cu+H3PO4+H2SO4______________________________________________________________________________--------------------------------------------------------------------------------------------------------------------------------------------------------------2(5)P+CuSO4+H2O-Cu3P+H3PO4+H2SO4(6)HClO3+P4+H2O-HCl+H3PO4(7)Fe(OH)3+NaOH+Cl2-Na2FeO4+NaCl+H2O(8)KI+H2SO4-I2+H2S+KHSO4+H2O(9)PbO2+H2SO4-PbSO4+O2+H2O(10)AsH3+AgNO3+H2O-As2O3+Ag+HNO3(11)NH4ClO4-N2↑+HCl↑+O2↑+H2O(12)NH4NO3-N2+NO2+H2O(13)NH4NO3-N2+HNO3+H2O(14)S+KOH-K2S+K2SO3+H2O(15)NO2+NaOH-NaNO2+NaNO3+H2O(16)F2+NH3-NH4F+N2(17)FeS2+O2-Fe2O3+SO2(18)Cu(IO3)2+KI+H2SO4-CuI↓+I2+K2SO4+H2Ovi.配平下列含x的氧化-还原反应(1)S+Ca(OH)2-CaS2O3+CaS·Sx+H2O(2)Na2Sx+NaClO+NaOH-Na2SO4+NaCl+H2O(3)NOx+NH3-N2+H2Ovii.配平下列离子氧化-还原反应(1)An+Bx--Ay-+Bm(2)Clm+OH--ClOn-+Cl-+H2O(3)BiO3-+Mn2++H+-Bi3++MnO4-+H2O(4)VO2++H2C2O4·2H2O+H+-VO2++CO2↑+H2Oviii.配平下列氧化还原方程式(1)F2+NH3-NH4F+N2(2)VO2++H2C2O4·2H2O+H+-VO2++CO2↑+H2O(3)P4+CuSO4+H2O-Cu3P+H3PO4+H2SO4iDii(1)252212(2)231232(3)253H2SO42153(4)2531258(5)2531258(6)2162528(7)81114417(8)610243651024iii(1)2382238(2)621621038(3)163119131(4)31814H3PO468921iv(1)38324(2)623324(3)410413(4)11023102(5)35235(6)15151(7)18184(8)34764(9)3163468(10)32231068(11)341914316(12)340313920v(1)4243(2)43313(3)514125712(4)258525(5)1115245615(6)103181012(7)2103268(8)894184(9)22212(10)212311212(11)42456(12)4328(13)5429(14)36213(15)22111(16)3861(17)41128(18)224122131212vi(1)2x+43123(2)13x+12x-2x3x+1x-1(3)64x2x+36x
本文标题:高中氧化还原反应配平练习题及答案
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