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3 CaCO3 + 2 H3PO4 = Ca3(PO4)2 + 3 H2CO3
N2 + O2 = NO =>
N2 + O2 = 2 NO
Pb(NO3)2 + KI = KNO3 + PbI2 =>
Pb(NO3)2 + 2 KI = 2 KNO3 + PbI2
Fe + O2 = FeO =>
2 Fe + O2 = 2 FeO
Ag2S = Ag + S8 =>
8 Ag2S = 16 Ag + S8
SO2 + O2 = SO3 =>
2 SO2 + O2 = 2 SO3
KBr + Fe(OH)3 = KOH + FeBr3 =>
3 KBr + Fe(OH)3 = 3 KOH + FeBr3
Na + H2O = Na(OH) + H2 =>
2 Na + 2 H2O = 2 Na(OH) + H2
OH{-} + Br2 = BrO3{-} + Br{-} + H20 =>
60 OH{-} + 30 Br2 = 20 BrO3{-} + 40 Br{-} + 3 H20
C2H5OH + O2 = CO2 + H2O =>
C2H5OH + 3 O2 = 2 CO2 + 3 H2O
P4 + NaOH + H2O = PH3 + NaH2PO3 =>
P4 + 2 NaOH + 4 H2O = 2 PH3 + 2 NaH2PO3
N2 + H2 = NH3 =>
N2 + 3 H2 = 2 NH3
OH{-} + Br2 = BrO3{-} + Br{-} + H2O =>
6 OH{-} + 3 Br2 = BrO3{-} + 5 Br{-} + 3 H2O
CO + H2O = CO2 + H2 =>
CO + H2O = CO2 + H2
Cl2 + KI = KCl + I2 =>
Cl2 + 2 KI = 2 KCl + I2
KNO3 + H2CO3 = K2CO3 + HNO3 =>
2 KNO3 + H2CO3 = K2CO3 + 2 HNO3
C5H8O2 + O2 = H2O + CO2 =>
C5H8O2 + 6 O2 = 4 H2O + 5 CO2
C5H4O2 + O2 = H2O + CO2 =>
C5H4O2 + 5 O2 = 2 H2O + 5 CO2
P4 + NaOH + H2O = PH3 + Na2PO3 =>
7 P4 + 24 NaOH + 12 H2O = 16 PH3 + 12 Na2PO3
Sb2O3 + Fe = Sb + FeO =>
Sb2O3 + 3 Fe = 2 Sb + 3 FeO
Ni(NO3)2 + NH4OH + C4H6N2(OH)2 = [C4H6N2(OH)O]Ni + NH4NO3 + H2O =>
8 Ni(NO3)2 + 18 NH4OH + 8 C4H6N2(OH)2 = 8[C4H6N2(OH)O]Ni + 17 NH4NO3 + 15 H2O
Pb(OH)4 + Cu2O = PbO2 + CuOH =>
Pb(OH)4 + 2 Cu2O = PbO2 + 4 CuOH
COCl2 + H2O = CO2 + HCl =>
COCl2 + H2O = CO2 + 2 HCl
CO + O2 = CO2 =>
2 CO + O2 = 2 CO2
Cr(NO2)2 + (NH4)2SO4 = CrSO4 + NH4NO2 =>
Cr(NO2)2 + (NH4)2SO4 = CrSO4 + 2 NH4NO2
KOH + Co3(PO4)2 = K3PO4 + Co(OH)2 =>
6 KOH + Co3(PO4)2 = 2 K3PO4 + 3 Co(OH)2
Fe2 + O2 = FeO3 =>
Fe2 + 3 O2 = 2 FeO3
Sn(NO2)4 + Pt3N4 = Sn3N4 + Pt(NO2)4 =>
3 Sn(NO2)4 + Pt3N4 = Sn3N4 + 3 Pt(NO2)4
HBr + NaOH = NaBr + H2O =>
HBr + NaOH = NaBr + H2O
K + H2O = KOH + H2 =>
2 K + 2 H2O = 2 KOH + H2
B2Br6 + HNO3 = B(NO3)3 + HBr =>
B2Br6 + 6 HNO3 = 2 B(NO3)3 + 6 HBr
C3H8 + O2 = CO2 + H2O =>
C3H8 + 5 O2 = 3 CO2 + 4 H2O
NaNO3 = NaNO2 + O2 =>
2 NaNO3 = 2 NaNO2 + O2
CoCl2 + NH3 = NH4Cl + Co(NH2)2 =>
CoCl2 + 4 NH3 = 2 NH4Cl + Co(NH2)2
ZnS + AlP = Zn3P2 + Al2S3 =>
3 ZnS + 2 AlP = Zn3P2 + Al2S3
Fe + Cl2 = FeCl3 =>
2 Fe + 3 Cl2 = 2 FeCl3
CH4 + O2 = CO2 + H2O =>
CH4 + 2 O2 = CO2 + 2 H2O
Cr2(SO4)3 + K2CO3 = Cr2(CO3)3 + K2SO4 =>
Cr2(SO4)3 + 3 K2CO3 = Cr2(CO3)3 + 3 K2SO4
Na + Cl2 = NaCl =>
2 Na + Cl2 = 2 NaCl
H2 + Cl2 = HCl =>
H2 + Cl2 = 2 HCl
Mg(NO3)2 + KOH = Mg(OH)2 + KNO3 =>
Mg(NO3)2 + 2 KOH = Mg(OH)2 + 2 KNO3
CO2 + H2O = C6H12O6 + O2 =>
6 CO2 + 6 H2O = C6H12O6 + 6 O2
Mg2 + HSO4 = Mg2SO4 + H2 =>
2 Mg2 + 2 HSO4 = 2 Mg2SO4 + H2
C19H22N2O4 + H2 = C11H16N2O2 + C6H5CH3 + CO2 =>
C19H22N2O4 + H2 = C11H16N2O2 + C6H5CH3 + CO2
(NH4)2CO3 + CaCl2 = CaCO3 + NH4Cl =>
(NH4)2CO3 + CaCl2 = CaCO3 + 2 NH4Cl
FeS2 + HCl = FeCl2 + H2S + S =>
FeS2 + 2 HCl = FeCl2 + H2S + S
FeS2 + CrO5 = Cr2O3 + Fe3O4 + SO2 =>
21 FeS2 + 32 CrO5 = 16 Cr2O3 + 7 Fe3O4 + 42 SO2
C2H6 + O2 = CO2 + H2O =>
2 C2H6 + 7 O2 = 4 CO2 + 6 H2O
RCH2OH + O2 = RCHO + H2O =>
2 RCH2OH + O2 = 2 RCHO + 2 H2O
C8H18 + O2 = CO2 + H2O =>
2 C8H18 + 25 O2 = 16 CO2 + 18 H2O
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