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C2H4 + 3 O2 = 2 CO2 + 2 H2O
CuSO4*5H2O + NaHCO3 = CuCO3Cu(OH)2 + Na2SO4 + CO2 + H2O =>
2 CuSO4*5H2O + 4 NaHCO3 = CuCO3Cu(OH)2 + 2 Na2SO4 + 3 CO2 + 11 H2O
HCl + K2SO3 = KCl + H2O + SO2 =>
2 HCl + K2SO3 = 2 KCl + H2O + SO2
CH3CH2Br + NaOH = CH3CH2CH2OCH2CH3 + CH3Br + NaBr =>
4 CH3CH2Br + NaOH = CH3CH2CH2OCH2CH3 + 3 CH3Br + NaBr
Ca(NO3)2 = CaO + O2 + NO2 =>
2 Ca(NO3)2 = 2 CaO + O2 + 4 NO2
Fe(s) + HBr(l) = FeBr3(aq) + H2(g) =>
2 Fe(s) + 6 HBr(l) = 2 FeBr3(aq) + 3 H2(g)
N2 + H2 = NH3 =>
N2 + 3 H2 = 2 NH3
Pb(NO3)2 + CuSO4 = PbSO4 + Cu(NO3)2 =>
Pb(NO3)2 + CuSO4 = PbSO4 + Cu(NO3)2
Mg + HNO3 = Mg(NO3)2 + N2O + H2O =>
4 Mg + 10 HNO3 = 4 Mg(NO3)2 + N2O + 5 H2O
Al + SnS = Al2S3 + Sn =>
2 Al + 3 SnS = Al2S3 + 3 Sn
C5H8O2 + NaH + HCl = C5H12O2 + NaCl =>
C5H8O2 + 2 NaH + 2 HCl = C5H12O2 + 2 NaCl
K3[Fe(CN6)] + NaOH = Na3[Fe(CN6)] + KOH =>
K3[Fe(CN6)] + 3 NaOH = Na3[Fe(CN6)] + 3 KOH
PbBr2 + HCl = HBr + PbCl2 =>
PbBr2 + 2 HCl = 2 HBr + PbCl2
Mg + HNO3 = Mg(NO3)2 + N2O + H2O =>
4 Mg + 10 HNO3 = 4 Mg(NO3)2 + N2O + 5 H2O
H2CO3 = H2O + CO2 =>
H2CO3 = H2O + CO2
ClO3{-} + N2H4 = NO + Cl{-} + H2O =>
4 ClO3{-} + 3 N2H4 = 6 NO + 4 Cl{-} + 6 H2O
K + B2O3 = K2O + B = =>
6 K + B2O3 = 3 K2O + 2 B
(C6H5)2NH + I2 = (C6H4)2NH + HI =>
(C6H5)2NH + I2 = (C6H4)2NH + 2 HI
Ni2O3 + H2SO4 + KI = I2 + Ni + K2SO4 + H2O =>
Ni2O3 + 3 H2SO4 + 6 KI = 3 I2 + 2 Ni + 3 K2SO4 + 3 H2O
氢氧化钙 + 二氧化碳 = 碳酸钙 + 水 =>
Ca(OH)2 + CO2 = CaCO3 + H2O
Zn(NO3)2 + K2S = ZnS + K2(NO3)2 =>
Zn(NO3)2 + K2S = ZnS + K2(NO3)2
Na + Ni2O3 = Ni + Na2O =>
6 Na + Ni2O3 = 2 Ni + 3 Na2O
Cu(NO3)2 + NH4SCN = Cu(SCN)2 + NH4NO3 =>
Cu(NO3)2 + 2 NH4SCN = Cu(SCN)2 + 2 NH4NO3
NaSO4 + CuCl2 = NaCl + Cu(SO4)2 =>
2 NaSO4 + CuCl2 = 2 NaCl + Cu(SO4)2
H2N4 + O2 = N2 + H2O =>
2 H2N4 + O2 = 4 N2 + 2 H2O
CS2(s) + S2Cl2(l) = S8(s) + CCl4(l) =>
4 CS2(s) + 8 S2Cl2(l) = 3 S8(s) + 4 CCl4(l)
OH{-} + CO2 = H2O + CO3{2-} =>
2 OH{-} + CO2 = H2O + CO3{2-}
Fe(oh)3 + O2 + H2O = Fe(OH)3 =>
4 Fe(oh)3 + 9 O2 + 18 H2O = 12 Fe(OH)3
H2CO3 = H2O + CO2 =>
H2CO3 = H2O + CO2
I + NO = NOI =>
I + NO = NOI
KOH + HCl = KCl + H2O =>
KOH + HCl = KCl + H2O
MgCl2 + Na2CO3 = MgCO3 + NaCl =>
MgCl2 + Na2CO3 = MgCO3 + 2 NaCl
Mg + K6 = KMg =>
6 Mg + K6 = 6 KMg
(OH)2 + Au = Au(OH)3 =>
3(OH)2 + 2 Au = 2 Au(OH)3
CaCl2 + Na3PO4 = Ca3(PO4)2 + NaCl =>
3 CaCl2 + 2 Na3PO4 = Ca3(PO4)2 + 6 NaCl
C25H52 + O2 = CO2 + H2O =>
C25H52 + 38 O2 = 25 CO2 + 26 H2O
Na2O + PbF3 = NaF + Pb2O3 =>
3 Na2O + 2 PbF3 = 6 NaF + Pb2O3
NO3 + CH3OH = N2 + H2O + CO2 =>
2 NO3 + 2 CH3OH = N2 + 4 H2O + 2 CO2
H2C2O4 + KMnO4 = H2O + KOH + CO2 + MnO =>
5 H2C2O4 + 2 KMnO4 = 4 H2O + 2 KOH + 10 CO2 + 2 MnO
CaCl2 + (NH4)2CO3 = CaCO3 + NH4Cl =>
CaCl2 + (NH4)2CO3 = CaCO3 + 2 NH4Cl
CH3Cl + NH3 = CH3NH2 + NH4Cl =>
CH3Cl + 2 NH3 = CH3NH2 + NH4Cl
Mg3N2 + Al2(SO4)3 = AlN + MgSO4 =>
Mg3N2 + Al2(SO4)3 = 2 AlN + 3 MgSO4
H2SO4(aq) + Ca(OH)2(aq) = CaSO4 + H2O(l) =>
H2SO4(aq) + Ca(OH)2(aq) = CaSO4 + 2 H2O(l)
H2(SO4) + Pb(CH3COO)2 = Pb(SO4) + CH3COOH =>
H2(SO4) + Pb(CH3COO)2 = Pb(SO4) + 2 CH3COOH
C6H12 + Br2 = C6H12Br2 =>
C6H12 + Br2 = C6H12Br2
KClO3 + NaNO2 = NaClO3 + NO2K =>
KClO3 + NaNO2 = NaClO3 + NO2K
NaF = Na + F2 =>
2 NaF = 2 Na + F2
Al + CO2 = Al2O3 + CO =>
2 Al + 3 CO2 = Al2O3 + 3 CO
NaCN + H2SO4 = Na2SO4 + HCN =>
2 NaCN + H2SO4 = Na2SO4 + 2 HCN
CdI2 + H2O = Cd{2+} + IO3{-} + H2 =>
CdI2 + 6 H2O = Cd{2+} + 2 IO3{-} + 6 H2
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