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2 CuS + 3 O2 = 2 CuO + 2 SO2
SiO2 + HF = SiF4 + H2O =>
SiO2 + 4 HF = SiF4 + 2 H2O
Al(OH)3 + H3PO4 = AlPO4 + H2O =>
Al(OH)3 + H3PO4 = AlPO4 + 3 H2O
Zn + HCl = ZnCl2 + H2 =>
Zn + 2 HCl = ZnCl2 + H2
C2H6 + O2 = CO2 + H2O =>
2 C2H6 + 7 O2 = 4 CO2 + 6 H2O
NH4NO2 = HNO2 + NH3 =>
NH4NO2 = HNO2 + NH3
FeCl2 + K2S = KCl + FeS =>
FeCl2 + K2S = 2 KCl + FeS
HClO4 + P4O10 = H3PO4 + Cl2O7 =>
12 HClO4 + P4O10 = 4 H3PO4 + 6 Cl2O7
FeCl2 + K2S = KCl + FeS =>
FeCl2 + K2S = 2 KCl + FeS
Al2O3 + C + Cl2 = AlCl3 + CO =>
Al2O3 + 3 C + 3 Cl2 = 2 AlCl3 + 3 CO
Al2O3 + C + Cl2 = AlCl3 + CO2 =>
2 Al2O3 + 3 C + 6 Cl2 = 4 AlCl3 + 3 CO2
AgCu + HNO3 = AgHNO3 + Cu =>
AgCu + HNO3 = AgHNO3 + Cu
H2SeO4 + NaCl = Na2SeO3 + Cl2 + H2O =>
H2SeO4 + 2 NaCl = Na2SeO3 + Cl2 + H2O
NH4NO3 = N2 + O2 + H2O =>
2 NH4NO3 = 2 N2 + O2 + 4 H2O
VOSO4 + Zn + H2SO4 = ZnO + V2(SO4)3 + H2O =>
2 VOSO4 + Zn + H2SO4 = ZnO + V2(SO4)3 + H2O
FeCl2 + Cu = CuCl2 + Fe =>
FeCl2 + Cu = CuCl2 + Fe
K2Cr2O7 + HBr = CrBr3 + Br2 + H2O + KBr =>
K2Cr2O7 + 14 HBr = 2 CrBr3 + 3 Br2 + 7 H2O + 2 KBr
FeCl2 + SiO2 = FeO2 + SiCl2 =>
FeCl2 + SiO2 = FeO2 + SiCl2
C3H6O3 + O2 = CO2 + H2O =>
C3H6O3 + 3 O2 = 3 CO2 + 3 H2O
AgCu + HNO3 = AgHNO3 + Cu =>
AgCu + HNO3 = AgHNO3 + Cu
AlBr3 + K = KBr + Al =>
AlBr3 + 3 K = 3 KBr + Al
HI + H2SO4 = I2 + H2S + H2O =>
8 HI + H2SO4 = 4 I2 + H2S + 4 H2O
FeO + PdF2 = FeF2 + PdO =>
FeO + PdF2 = FeF2 + PdO
KCLO3 + FeSO4 + H2SO4 = KCL + Fe(SO4)3 + H2O =>
2 KCLO3 + 3 FeSO4 + 6 H2SO4 = 2 KCL + 3 Fe(SO4)3 + 6 H2O
NaHCO3 + H2SO4 = Na2SO4 + H2CO3 =>
2 NaHCO3 + H2SO4 = Na2SO4 + 2 H2CO3
P4 + Br2 = PBr3 =>
P4 + 6 Br2 = 4 PBr3
LiCl + Br2 = LiBr + Cl2 =>
2 LiCl + Br2 = 2 LiBr + Cl2
PbBr2 + HCl = HBr + PbCl2 =>
PbBr2 + 2 HCl = 2 HBr + PbCl2
Bi + I = BiI2 =>
Bi + 2 I = BiI2
Fe + O2 = Fe2O3 =>
4 Fe + 3 O2 = 2 Fe2O3
Na4O2 = Na2O =>
Na4O2 = 2 Na2O
Na3P + CaF2 = NaF + Ca3P2 =>
2 Na3P + 3 CaF2 = 6 NaF + Ca3P2
NH3 + O2 = NO + H2O =>
4 NH3 + 5 O2 = 4 NO + 6 H2O
CH3CH2CHO + K2Cr2O7 + H2SO4 = CH3CH2COOH + K2SO4 + Cr2(SO4)3 + H2O =>
3 CH3CH2CHO + K2Cr2O7 + 4 H2SO4 = 3 CH3CH2COOH + K2SO4 + Cr2(SO4)3 + 4 H2O
CoBr3 + CaSO4 = CaBr2 + Co2(SO4)3 =>
2 CoBr3 + 3 CaSO4 = 3 CaBr2 + Co2(SO4)3
Mn + HI = H2 + MnI3 =>
2 Mn + 6 HI = 3 H2 + 2 MnI3
Li3PO4 + NaBr = Na3PO4 + LiBr =>
Li3PO4 + 3 NaBr = Na3PO4 + 3 LiBr
CaF2 + Li2SO4 = CaSO4 + LiF =>
CaF2 + Li2SO4 = CaSO4 + 2 LiF
SO3 + H2O = H2SO4 =>
SO3 + H2O = H2SO4
AgNO3 + H2S = Ag2S + HNO3 =>
2 AgNO3 + H2S = Ag2S + 2 HNO3
CH3CH2CHO + K2Cr2O7 + H2SO4 = CH3CH2COOH + K2SO4 + Cr2(SO4)3 + H2O =>
3 CH3CH2CHO + K2Cr2O7 + 4 H2SO4 = 3 CH3CH2COOH + K2SO4 + Cr2(SO4)3 + 4 H2O
LiNO3 + CaBr2 = Ca(NO3)2 + LiBr =>
2 LiNO3 + CaBr2 = Ca(NO3)2 + 2 LiBr
NaI + PbO2 + H2SO4 = Na2SO4 + PbSO4 + I2 + H2O =>
2 NaI + PbO2 + 2 H2SO4 = Na2SO4 + PbSO4 + I2 + 2 H2O
AgNO3 + Li = LiNO3 + Ag =>
AgNO3 + Li = LiNO3 + Ag
H2S + HNO3 = S + NO + H2O =>
3 H2S + 2 HNO3 = 3 S + 2 NO + 4 H2O
Si(OH)4 + NaBr = SiBr4 + NaOH =>
Si(OH)4 + 4 NaBr = SiBr4 + 4 NaOH
H2S + HNO3 = SO2 + NO + H2O =>
H2S + 2 HNO3 = SO2 + 2 NO + 2 H2O
H2O + NaCl = NaH2 + ClO =>
H2O + NaCl = NaH2 + ClO
NaCN + CuCO3 = Na2CO3 + Cu(CN)2 =>
2 NaCN + CuCO3 = Na2CO3 + Cu(CN)2
C6H11OH + K2Cr2O7 + H2SO4 = C6H10O4 + H2O + K2SO4 + Cr2(SO4)3 =>
3 C6H11OH + 4 K2Cr2O7 + 16 H2SO4 = 3 C6H10O4 + 19 H2O + 4 K2SO4 + 4 Cr2(SO4)3
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