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2 H2 + O2 = 2 H2O
Ca + O2 = CaO =>
2 Ca + O2 = 2 CaO
H2S + O2 = SO2 + H2O =>
2 H2S + 3 O2 = 2 SO2 + 2 H2O
HCl + Al = AlCl3 + H2 =>
6 HCl + 2 Al = 2 AlCl3 + 3 H2
CaO + C = CaC2 + CO2 =>
2 CaO + 5 C = 2 CaC2 + CO2
CuSO4 + Na3PO4 = CuPO4 + Na3SO4 =>
CuSO4 + Na3PO4 = CuPO4 + Na3SO4
CaO + H2O = Ca(OH)2 =>
CaO + H2O = Ca(OH)2
(FeCl3) + (Na2(CO3)2) = (Fe(CO3)2) + (Cl3Na2) =>
(FeCl3) + (Na2(CO3)2) = (Fe(CO3)2) + (Cl3Na2)
NaNO3 + ZN + NaOH = NH3 + Na2ZNO2 + H2O =>
NaNO3 + 4 ZN + 7 NaOH = NH3 + 4 Na2ZNO2 + 2 H2O
N2H4 + N2O4 = N2 + H2O =>
2 N2H4 + N2O4 = 3 N2 + 4 H2O
C2H4 + O2 = CO2 + H2O =>
C2H4 + 3 O2 = 2 CO2 + 2 H2O
P + O = P4O6 =>
4 P + 6 O = P4O6
NaOH + MgCl2 = NaCl + Mg(OH)2 =>
2 NaOH + MgCl2 = 2 NaCl + Mg(OH)2
Na2Co3(s) + HCl(aq) = NaCl(aq) + H2Co3(s) =>
Na2Co3(s) + 2 HCl(aq) = 2 NaCl(aq) + H2Co3(s)
Al + HCl = AlCl3 + H2 =>
2 Al + 6 HCl = 2 AlCl3 + 3 H2
NO + H2O + O2 = HNO3 =>
4 NO + 2 H2O + 3 O2 = 4 HNO3
Fe3O4 + CO = Fe + CO2 =>
Fe3O4 + 4 CO = 3 Fe + 4 CO2
PbSO4 = PbSO3 + O2 =>
2 PbSO4 = 2 PbSO3 + O2
C3H8 + Cl2 = C3H3Cl5 + HCl =>
C3H8 + 5 Cl2 = C3H3Cl5 + 5 HCl
NH3 + H2SO4 = (NH4)2SO4 =>
2 NH3 + H2SO4 = (NH4)2SO4
MgCO3 = MgO + CO2 =>
MgCO3 = MgO + CO2
HI + HIO3 = H2O + I2 =>
5 HI + HIO3 = 3 H2O + 3 I2
NH3 + I2 = N2I6 + H2 =>
2 NH3 + 3 I2 = N2I6 + 3 H2
FeCl3 + NaOH = Fe(OH)3 + NaCl =>
FeCl3 + 3 NaOH = Fe(OH)3 + 3 NaCl
CO2 = C + O =>
CO2 = C + 2 O
NO + H2O + O2 = HNO3 =>
4 NO + 2 H2O + 3 O2 = 4 HNO3
CH4 + HNO3 = CH3NO2 + H2O =>
CH4 + HNO3 = CH3NO2 + H2O
K(OH) + SO2 = K2SO3 + H2O =>
2 K(OH) + SO2 = K2SO3 + H2O
H2O + SO3 = H2SO4 =>
H2O + SO3 = H2SO4
As2S3 + HNO3 = H3AsO4 + SO2 + NO2 + H2O =>
As2S3 + 22 HNO3 = 2 H3AsO4 + 3 SO2 + 22 NO2 + 8 H2O
CH4 + H2O = CO + H2 =>
CH4 + H2O = CO + 3 H2
Mg + S = MgS =>
Mg + S = MgS
Al + H2SO4 = Al2(SO4)3 + H2 =>
2 Al + 3 H2SO4 = Al2(SO4)3 + 3 H2
AgNO3 + (NH4)2CrO4 = Ag2CrO4 + NH4NO3 =>
2 AgNO3 + (NH4)2CrO4 = Ag2CrO4 + 2 NH4NO3
Cu + HNO3 = Cu(NO3)2 + H2O + NO =>
3 Cu + 8 HNO3 = 3 Cu(NO3)2 + 4 H2O + 2 NO
C6H10(OH)2 + O2 = CO2 + H2O =>
C6H10(OH)2 + 8 O2 = 6 CO2 + 6 H2O
KOH(aq) + H3PO4(aq) = K3PO4(aq) + H2O(l) =>
3 KOH(aq) + H3PO4(aq) = K3PO4(aq) + 3 H2O(l)
CrCl2 + KCr2O7 + HCl = CrCl3 + H2O + KCl =>
7 CrCl2 + KCr2O7 + 14 HCl = 9 CrCl3 + 7 H2O + KCl
C2H4 + H2O = C2H5OH =>
C2H4 + H2O = C2H5OH
S + NaOH = Na2S + Na2SO3 + H20 =>
30 S + 60 NaOH = 10 Na2S + 20 Na2SO3 + 3 H20
Fe2O3 + H2 = Fe + H2O =>
Fe2O3 + 3 H2 = 2 Fe + 3 H2O
C4H10 + O2 = H2O + CO2 =>
2 C4H10 + 13 O2 = 10 H2O + 8 CO2
N + O = N2O5 =>
2 N + 5 O = N2O5
Fe(OH)3 + NaOH = FeOH + (OH)3Na =>
Fe(OH)3 + NaOH = FeOH + (OH)3Na
CO3{2-} + H3O{+} = CO2 + H2O =>
CO3{2-} + 2 H3O{+} = CO2 + 3 H2O
Sb + Cl = SbCl3 =>
Sb + 3 Cl = SbCl3
HCOOH + K = HCOOK + H2 =>
2 HCOOH + 2 K = 2 HCOOK + H2
C6H5CH3 + KMnO4 + H2SO4 = C6H5COOH + MnSO4 + K2SO4 + H2O =>
5 C6H5CH3 + 6 KMnO4 + 9 H2SO4 = 5 C6H5COOH + 6 MnSO4 + 3 K2SO4 + 14 H2O
H2SO4 + NH4OH = H2O + (NH4)2SO4 =>
H2SO4 + 2 NH4OH = 2 H2O + (NH4)2SO4
HCOOH + K2O = HCOOK + H2O =>
2 HCOOH + K2O = 2 HCOOK + H2O
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