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4 FeS2 + 11 O2 = 2 Fe2O3 + 8 SO2
CO2 + H2S = CS2 + H2O =>
CO2 + 2 H2S = CS2 + 2 H2O
Co(OH)2(s) + HNO3(aq) = Co(NO3)2 + H2O =>
Co(OH)2(s) + 2 HNO3(aq) = Co(NO3)2 + 2 H2O
Ma + Cl2 = MaCl2 =>
Ma + Cl2 = MaCl2
H2O + MnO4{-} + NO2{-} = MnO2 + NO3{-} + OH{-} =>
H2O + 2 MnO4{-} + 3 NO2{-} = 2 MnO2 + 3 NO3{-} + 2 OH{-}
NiS + HCl = NiCl2 + H2S =>
NiS + 2 HCl = NiCl2 + H2S
ZnCl2 + AgNO2 = Zn(NO2)2 + AgCl =>
ZnCl2 + 2 AgNO2 = Zn(NO2)2 + 2 AgCl
Al(s) + CuCl2(aq) = Cu(s) + AlCl3(aq)Cu(s) =>
2 Al(s) + 3 CuCl2(aq) = Cu(s) + 2 AlCl3(aq)Cu(s)
HSO4 + O2 = H2O + SO4 =>
4 HSO4 + O2 = 2 H2O + 4 SO4
KOH + H2O = KO2H3 =>
KOH + H2O = KO2H3
Hg + O2 = Hg2O =>
4 Hg + O2 = 2 Hg2O
Na + HBr = Na2Br + H2 =>
4 Na + 2 HBr = 2 Na2Br + H2
H3NO4 + Mg(OH)2 = Mg(NO3)2 + H2O =>
2 H3NO4 + Mg(OH)2 = Mg(NO3)2 + 4 H2O
CaCO3 + HNO3 = H2CO3Ca(NO3)2 =>
CaCO3 + 2 HNO3 = H2CO3Ca(NO3)2
NaOH + HCl = NaCl + H2O(classification) =>
NaOH + HCl = NaCl + H2O(classification)
K2SO4 + Ba{2+} = BaSO4 + K{+} =>
K2SO4 + Ba{2+} = BaSO4 + 2 K{+}
HCl + AgNo = HClAgNo =>
HCl + AgNo = HClAgNo
AgS + HNO3 = AgNO3 + S8 + NO + H2O =>
24 AgS + 32 HNO3 = 24 AgNO3 + 3 S8 + 8 NO + 16 H2O
HNO3 + NI(OH)2 = NI(NO3)2 + H2O =>
2 HNO3 + NI(OH)2 = NI(NO3)2 + 2 H2O
C6H10O5 + H2SO4 = C3H2SO4 + CH4 + H6O6 =>
12 C6H10O5 + 19 H2SO4 = 19 C3H2SO4 + 15 CH4 + 10 H6O6
Ge + H2 = Ge2H2 =>
2 Ge + H2 = Ge2H2
CuOH + NaSO4 = CuSO4 + NaOH =>
CuOH + NaSO4 = CuSO4 + NaOH
C6H6 + AlCl3 = C6H5Cl + HCl + Al =>
3 C6H6 + 2 AlCl3 = 3 C6H5Cl + 3 HCl + 2 Al
MoS3 + HNO3 = H2MoO4 + H2SO4 + H2O + NO2 =>
MoS3 + 24 HNO3 = H2MoO4 + 3 H2SO4 + 8 H2O + 24 NO2
MgOHNO3 + KOH = KNO3 + Mg(OH)2 =>
MgOHNO3 + KOH = KNO3 + Mg(OH)2
FeO + NH3 = Fe + N2O + H2O =>
4 FeO + 2 NH3 = 4 Fe + N2O + 3 H2O
Mg(OH)2 + FeSO4 = Mg(OH)2SO4 + Fe =>
Mg(OH)2 + FeSO4 = Mg(OH)2SO4 + Fe
NaOH + HI = NaH + IOH =>
NaOH + HI = NaH + IOH
Al2(SO4)3 + HOH = Al(OH)3 + H2(SO4) =>
Al2(SO4)3 + 6 HOH = 2 Al(OH)3 + 3 H2(SO4)
CH3CO2{-} + NH4{+} = CH3CO2NH2 + H2 =>
CH3CO2{-} + NH4{+} = CH3CO2NH2 + H2
Pb(NO3)2 = PbO + NO(g) + O2(g) =>
2 Pb(NO3)2 = 2 PbO + 4 NO(g) + 3 O2(g)
FeCl3 + H2SO4 + Zn = Fe2(SO4)3 + Zn3Cl2 + H2 =>
2 FeCl3 + 3 H2SO4 + 9 Zn = Fe2(SO4)3 + 3 Zn3Cl2 + 3 H2
AgNO3 + PbNO32 = PbNO3 + AgNO32 =>
AgNO3 + PbNO32 = PbNO3 + AgNO32
Mg(Cl)2 + H2SO4 = Mg2(SO4)2 + (H)Cl =>
2 Mg(Cl)2 + 2 H2SO4 = Mg2(SO4)2 + 4(H)Cl
Mg2Al4Si5O18 + H2O = SiO2 + Mg4Al10Si8O34(OH)2 + Mg3Si4O10(OH)2 =>
15 Mg2Al4Si5O18 + 8 H2O = 19 SiO2 + 6 Mg4Al10Si8O34(OH)2 + 2 Mg3Si4O10(OH)2
NaNO3(aq) + Ba(s) = Ba(NO3)2(aq) + Na(s) =>
2 NaNO3(aq) + Ba(s) = Ba(NO3)2(aq) + 2 Na(s)
Hg2CO3 + HNO3 = Hg(NO3)2 + H2O + NO2 + CO2 =>
Hg2CO3 + 6 HNO3 = 2 Hg(NO3)2 + 3 H2O + 2 NO2 + CO2
K2S + ZnI2 = KI + ZnS =>
K2S + ZnI2 = 2 KI + ZnS
SiO2 + Ca(OH)2 = CaO2 + Si(OH)2 =>
SiO2 + Ca(OH)2 = CaO2 + Si(OH)2
P + NH4ClO4 = N2 + Cl2 + H3PO4 + H2O =>
8 P + 10 NH4ClO4 = 5 N2 + 5 Cl2 + 8 H3PO4 + 8 H2O
CH3CH2CH2COOH + NH3 = NHCH3CH2CH2COH + H2O =>
CH3CH2CH2COOH + NH3 = NHCH3CH2CH2COH + H2O
H3O + OH = H2O =>
H3O + OH = 2 H2O
CuCl2 + NH3 + H2O = (Cu(NH3)4)(OH)2 + NH4Cl =>
CuCl2 + 6 NH3 + 2 H2O = (Cu(NH3)4)(OH)2 + 2 NH4Cl
AgCl + NH3 = [Ag(NH3)] + Cl =>
AgCl + NH3 = [Ag(NH3)] + Cl
H + Fl = HFl =>
H + Fl = HFl
Ba(NO3)2 + Na2S = Ba2S2 + NO3Na =>
2 Ba(NO3)2 + 2 Na2S = Ba2S2 + 4 NO3Na
PhCH3 + KMnO4 + H2SO4 = PhCOOH + K2SO4 + MnSO4 + H2O =>
5 PhCH3 + 6 KMnO4 + 9 H2SO4 = 5 PhCOOH + 3 K2SO4 + 6 MnSO4 + 14 H2O
CuSO4 + LiOH = Cu(OH)2 + S + O + Li =>
CuSO4 + 2 LiOH = Cu(OH)2 + S + 4 O + 2 Li
Zn + HCl = ZnCl2 + H2 =>
Zn + 2 HCl = ZnCl2 + H2
Na + (NH2)2CO = NaCN + NH3 + NaOH =>
2 Na + (NH2)2CO = NaCN + NH3 + NaOH
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