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Co3O = 3 Co + O
P4 + Br2 = PBr3 =>
P4 + 6 Br2 = 4 PBr3
Fe + S = FeS =>
Fe + S = FeS
CH4(g) + Br2(g) = CHBr3(l) + HBr(g) =>
CH4(g) + 3 Br2(g) = CHBr3(l) + 3 HBr(g)
CuO + P2O5 = Cu3(PO4)2 =>
3 CuO + P2O5 = Cu3(PO4)2
Al + FeO = Al2O3 + Fe =>
2 Al + 3 FeO = Al2O3 + 3 Fe
Zn + HNO3 = Zn(NO3)2 + NH4NO3 + H2O =>
4 Zn + 10 HNO3 = 4 Zn(NO3)2 + NH4NO3 + 3 H2O
KNO3 + Ca = CaKNO3 =>
KNO3 + Ca = CaKNO3
C6H6 + Cl2 = C8H5Cl + HCl =>
4 C6H6 + 6 Cl2 = 3 C8H5Cl + 9 HCl
Pb2O3 + HCl = PbCl2 + Cl2 + H2O =>
Pb2O3 + 6 HCl = 2 PbCl2 + Cl2 + 3 H2O
Na2CrO4 + Na2SO4 + H2O = Cr2(SO4)3 + Na2O2 + NaOH =>
2 Na2CrO4 + 3 Na2SO4 + 2 H2O = Cr2(SO4)3 + 3 Na2O2 + 4 NaOH
K2Cr2O7 + H2C2O4(H2O)2 = K[Cr(C2O4)2(H2O)2](H2O)2 + CO2 + H2O =>
K2Cr2O7 + 7 H2C2O4(H2O)2 = 2 K[Cr(C2O4)2(H2O)2](H2O)2 + 6 CO2 + 13 H2O
CaCO3 + HNO3 = HCO3 + CaNO3 =>
CaCO3 + HNO3 = HCO3 + CaNO3
H3BO3 + Li2CO3 = Li2B2O4 + H2O + CO2 =>
2 H3BO3 + Li2CO3 = Li2B2O4 + 3 H2O + CO2
NaOH + Br2 = BrO + NaBr + H2O =>
4 NaOH + 3 Br2 = 2 BrO + 4 NaBr + 2 H2O
MgCl2(aq) + NaOH = NaCl + Mg(OH)2 =>
MgCl2(aq) + 2 NaOH = 2 NaCl + Mg(OH)2
H3PO4 + Na2O = Na3PO4 + H2O =>
2 H3PO4 + 3 Na2O = 2 Na3PO4 + 3 H2O
Cu2 + Fe3 + O2 = Cu4(Fe6O4)3 =>
2 Cu2 + 6 Fe3 + 6 O2 = Cu4(Fe6O4)3
AlCl3 + K2Cr2O7 + HSO4 = Cr2(SO4)3 + K2SO4 + Cl2 + Al2(SO4)3 + H2O =>
20 AlCl3 + 3 K2Cr2O7 + 42 HSO4 = 3 Cr2(SO4)3 + 3 K2SO4 + 30 Cl2 + 10 Al2(SO4)3 + 21 H2O
KNO3 + H2SO4 + KI = K2SO4 + NO + I2 + H2O =>
2 KNO3 + 4 H2SO4 + 6 KI = 4 K2SO4 + 2 NO + 3 I2 + 4 H2O
Na2S + CaCl2 = Na2Ca + Cl2S =>
Na2S + CaCl2 = Na2Ca + Cl2S
Al2O3 + K2O = K3AlO3 =>
Al2O3 + 3 K2O = 2 K3AlO3
Fe2O3 + C = Fe + CO2 =>
2 Fe2O3 + 3 C = 4 Fe + 3 CO2
H2SO4 + HI = H2S + I2 + H2O =>
H2SO4 + 8 HI = H2S + 4 I2 + 4 H2O
CH3OH + O2 = CO2 + H2O =>
2 CH3OH + 3 O2 = 2 CO2 + 4 H2O
H2(SO4) + Ba(NO3)2 = Ba(SO4) + H(NO3) =>
H2(SO4) + Ba(NO3)2 = Ba(SO4) + 2 H(NO3)
N2 + C3H6 = NH3 + C2H2 =>
N2 + 2 C3H6 = 2 NH3 + 3 C2H2
SrS + HNO3 = Sr(NO3)2 + NO + H2SO4 + H2O =>
3 SrS + 14 HNO3 = 3 Sr(NO3)2 + 8 NO + 3 H2SO4 + 4 H2O
N2O3 + H2O = N(OH)3 =>
N2O3 + 3 H2O = 2 N(OH)3
Pb(SO4)2 + CsClO3 = Pb(ClO3)2 + Cs(SO4) =>
Pb(SO4)2 + 2 CsClO3 = Pb(ClO3)2 + 2 Cs(SO4)
C13H10O + NaBH4 = C13H12O + BH2 + Na =>
C13H10O + NaBH4 = C13H12O + BH2 + Na
Cu2O(s) + C(s) = CO(g) + Cu(s) =>
Cu2O(s) + C(s) = CO(g) + 2 Cu(s)
K2Cr2O7 + HF + H2SO4 = K2SO4 + Cr2(SO4)3 + H2O + F2 =>
K2Cr2O7 + 6 HF + 4 H2SO4 = K2SO4 + Cr2(SO4)3 + 7 H2O + 3 F2
Fe2O3 + Cr2O3 = FeCr2O4 + O2 =>
2 Fe2O3 + 4 Cr2O3 = 4 FeCr2O4 + O2
NaOCl + Na2S2O3 = NaCl + Na2S2O5 =>
2 NaOCl + Na2S2O3 = 2 NaCl + Na2S2O5
K2Cr2O7 + SnBr2 + HBr = SnBr4 + CrBr3 + KBr + H2O =>
K2Cr2O7 + 3 SnBr2 + 14 HBr = 3 SnBr4 + 2 CrBr3 + 2 KBr + 7 H2O
K2S + Pd(NO3)2 = PdS + KNO3 =>
K2S + Pd(NO3)2 = PdS + 2 KNO3
BiI3 + MnI2 + H2O = Mn(H2O)6(BiI4)2*2H2O =>
2 BiI3 + MnI2 + 8 H2O = Mn(H2O)6(BiI4)2*2H2O
H2SO4 + SiO2 = H2SiO2 + SO4 =>
H2SO4 + SiO2 = H2SiO2 + SO4
C8H6O4 + O2 = CO2 + H2O =>
2 C8H6O4 + 15 O2 = 16 CO2 + 6 H2O
Co(OH)2 + HNO3 = Co(NO3)2 + H2O =>
Co(OH)2 + 2 HNO3 = Co(NO3)2 + 2 H2O
NiSO4 + NaSO2 = NaSO4 + NiSO2 =>
NiSO4 + NaSO2 = NaSO4 + NiSO2
[Cu(NH3)2]Cl + C3H4 = C3H3Cu + NH3 + HCl =>
[Cu(NH3)2]Cl + C3H4 = C3H3Cu + 2 NH3 + HCl
HAuCl4 + SO2 + H2O = Au + HCl + H2SO4 =>
2 HAuCl4 + 3 SO2 + 6 H2O = 2 Au + 8 HCl + 3 H2SO4
Hg + HBr = HgH + Br =>
Hg + HBr = HgH + Br
H2SO4 + HI = H2S + I2 + H2O =>
H2SO4 + 8 HI = H2S + 4 I2 + 4 H2O
C3H6O2 + O2 = CO2 + H2O =>
2 C3H6O2 + 7 O2 = 6 CO2 + 6 H2O
V(s) + VCl4(s) = V2Cl4(s) =>
V(s) + VCl4(s) = V2Cl4(s)
C3H4 + KMnO4 = C3H3O3K + MnO2 + KOH =>
C3H4 + 2 KMnO4 = C3H3O3K + 2 MnO2 + KOH
K2Cr2O7 + FeSO + H2SO4 = K2SO4 + Fe2(SO4)3 + Cr2(SO4)3 + H2O =>
7 K2Cr2O7 + 6 FeSO + 31 H2SO4 = 7 K2SO4 + 3 Fe2(SO4)3 + 7 Cr2(SO4)3 + 31 H2O
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