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4 Fe + 3 O2 = 2 Fe2O3
HCl + C20H14O4 + NH4OH = NH4OHC20H14O4HCl =>
HCl + C20H14O4 + NH4OH = NH4OHC20H14O4HCl
NH3 + HCI = NH4CI =>
NH3 + HCI = NH4CI
Mg(s) + O2(g) = MgO(s) =>
2 Mg(s) + O2(g) = 2 MgO(s)
HCl + Na2CO3 = NaCl + H2O(l) + CO2(g) =>
2 HCl + Na2CO3 = 2 NaCl + H2O(l) + CO2(g)
HClO3 + Cu(OH)2 = H2O + Cu(OH)ClO3 =>
HClO3 + Cu(OH)2 = H2O + Cu(OH)ClO3
Al(s) + CuCl(aq) = AlCl3(aq) + Cu(s) =>
Al(s) + 3 CuCl(aq) = AlCl3(aq) + 3 Cu(s)
HPO3{-} + H2O2 = PO4{-} + H2O =>
2 HPO3{-} + 3 H2O2 = 2 PO4{-} + 4 H2O
C2H(oh)2 + H2O = C2H4(OH)2 =>
C2H(oh)2 + 2 H2O = C2H4(OH)2
K1I + H2SO4 = H2S + H2O + I2 + K2SO4 =>
8 K1I + 5 H2SO4 = H2S + 4 H2O + 4 I2 + 4 K2SO4
CaCO3 + HC2H5CO2 = Ca(C2H5CO2)2 + CO2 + H2O =>
CaCO3 + 2 HC2H5CO2 = Ca(C2H5CO2)2 + CO2 + H2O
CS2 + H2S + Cu = Cu2S + CH =>
2 CS2 + H2S + 10 Cu = 5 Cu2S + 2 CH
NaN3 + KNO3 = N2 + KO2 + Na2O =>
4 NaN3 + 2 KNO3 = 7 N2 + 2 KO2 + 2 Na2O
CaCl2(aq) + LiNO3(aq) = Ca(NO3)2 + LiCl =>
CaCl2(aq) + 2 LiNO3(aq) = Ca(NO3)2 + 2 LiCl
(NH4)Cl + Ca(OH)2 = (NH4)(OH) + CaCl2 =>
2(NH4)Cl + Ca(OH)2 = 2(NH4)(OH) + CaCl2
SiC + H2O = C2H4 + SiO =>
2 SiC + 2 H2O = C2H4 + 2 SiO
C7H8 + CH3OH = C9H11 + H2O =>
7 C7H8 + 5 CH3OH = 6 C9H11 + 5 H2O
(NH4)2SO3 + MgSO4 = (NH4)2SO4 + MgSO3 =>
(NH4)2SO3 + MgSO4 = (NH4)2SO4 + MgSO3
MnO2 + S = MnSO4 + MnO =>
3 MnO2 + S = MnSO4 + 2 MnO
NaBH4 + HAgF2 + H2O = Ag + B(OH)3 + HF + NaF =>
NaBH4 + 8 HAgF2 + 3 H2O = 8 Ag + B(OH)3 + 15 HF + NaF
H3BO3 + Li = LiBO3 + H2 =>
2 H3BO3 + 2 Li = 2 LiBO3 + 3 H2
H + Al3Cl = Al + HCl =>
H + Al3Cl = 3 Al + HCl
Na2SO3 + Cu3PO4 = Na3PO4 + Cu2SO3 =>
3 Na2SO3 + 2 Cu3PO4 = 2 Na3PO4 + 3 Cu2SO3
S8 + BaO = BaS8 + O2 =>
2 S8 + 2 BaO = 2 BaS8 + O2
SiO2 + KOH = K2OSiO2 + H2O =>
SiO2 + 2 KOH = K2OSiO2 + H2O
Ca(C4H6O4) + K2Cr2O7 + H2SO4 = CO2 + Cr2SO4 + K2SO4 + H2O + CaSO4 =>
5 Ca(C4H6O4) + 8 K2Cr2O7 + 21 H2SO4 = 20 CO2 + 8 Cr2SO4 + 8 K2SO4 + 36 H2O + 5 CaSO4
HCl + Br2 = HBr + BrCl =>
HCl + Br2 = HBr + BrCl
Al(OH)2Cl + H2O = Al(OH)3 + HCl =>
Al(OH)2Cl + H2O = Al(OH)3 + HCl
FeCr2O4 + PbCO3 + O2 = PbCrO4 + FeO3 + CO2 =>
2 FeCr2O4 + 4 PbCO3 + 5 O2 = 4 PbCrO4 + 2 FeO3 + 4 CO2
AgV + Na2S = Ag2S + NaV =>
2 AgV + Na2S = Ag2S + 2 NaV
BaCl2 + K2Cr2O7 + CH3COONa + H2O = BaCrO4 + KOH + NaCl + CH3COOH =>
2 BaCl2 + K2Cr2O7 + 4 CH3COONa + 3 H2O = 2 BaCrO4 + 2 KOH + 4 NaCl + 4 CH3COOH
KClO4 + C12H20O4 = KCl + CO + H2O =>
9 KClO4 + 2 C12H20O4 = 9 KCl + 24 CO + 20 H2O
Fe + O2 = Fe2O3 =>
4 Fe + 3 O2 = 2 Fe2O3
CS2(s) + O2(g) = CO2(g) + SO2(g) =>
CS2(s) + 3 O2(g) = CO2(g) + 2 SO2(g)
KNO3 = KNO2 + O2 =>
2 KNO3 = 2 KNO2 + O2
C2H6 + O = CO + H2O =>
C2H6 + 5 O = 2 CO + 3 H2O
C6H12O6 + O2 = CO2 + H2O =>
C6H12O6 + 6 O2 = 6 CO2 + 6 H2O
NO2(g) + H2H(l) = HNO3(aq) + NO(g) =>
6 NO2(g) + H2H(l) = 3 HNO3(aq) + 3 NO(g)
Ca(s) + HgNO3(aq) = Ca(NO3)2(aq) + Hg(s) =>
Ca(s) + 2 HgNO3(aq) = Ca(NO3)2(aq) + 2 Hg(s)
HOOC(CH2)4COOH + NaHCO3 = NaOOC(CH2)4COONa + H2O + CO2 =>
HOOC(CH2)4COOH + 2 NaHCO3 = NaOOC(CH2)4COONa + 2 H2O + 2 CO2
C6H6 + Cl2 = C6H6Cl6 =>
C6H6 + 3 Cl2 = C6H6Cl6
C6H5O + HO{-} = C6H4O{-} + H2O =>
C6H5O + HO{-} = C6H4O{-} + H2O
Na2B10O16 + H2O = Na + B(OH)4 + B(OH)3 =>
Na2B10O16 + 16 H2O = 2 Na + 2 B(OH)4 + 8 B(OH)3
SiO2 + LiOH = H2O + Li2SiO3 =>
SiO2 + 2 LiOH = H2O + Li2SiO3
NH3 + HCI = NH4CI =>
NH3 + HCI = NH4CI
C3H8 + O2 = CO2 + H2O =>
C3H8 + 5 O2 = 3 CO2 + 4 H2O
KCN + C2H6O + O2 = C3H6O3 + K + N =>
KCN + C2H6O + O2 = C3H6O3 + K + N
Co(ClO)2 + B(HCO3)3 = Co(HCO3)2 + B(ClO)3 =>
3 Co(ClO)2 + 2 B(HCO3)3 = 3 Co(HCO3)2 + 2 B(ClO)3
Ni(HCO3)3 = Ni3 + HCO3 =>
3 Ni(HCO3)3 = Ni3 + 9 HCO3
NaBH4(aq) + H2O(l) = NaBO2(aq) + H2(g) =>
NaBH4(aq) + 2 H2O(l) = NaBO2(aq) + 4 H2(g)
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