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C2H4 + 3 O2 = 2 CO2 + 2 H2O
H2 + O2 = H2O =>
2 H2 + O2 = 2 H2O
Fe(NO3)3 + KOH = KNO3 + Fe(OH)3 =>
Fe(NO3)3 + 3 KOH = 3 KNO3 + Fe(OH)3
H2O + Cl2 = HCl + O2 =>
2 H2O + 2 Cl2 = 4 HCl + O2
SnO + NF3 = SnF2 + N2O3 =>
3 SnO + 2 NF3 = 3 SnF2 + N2O3
ZnS + O2 = ZnO + SO3 =>
ZnS + 2 O2 = ZnO + SO3
PCl5 + H2O = H3PO4 + HCl =>
PCl5 + 4 H2O = H3PO4 + 5 HCl
Na + H2O = NaOH + H2 =>
2 Na + 2 H2O = 2 NaOH + H2
O2 + Mo23O37 = MoO3 =>
16 O2 + Mo23O37 = 23 MoO3
CuS + O2 = Cu + SO2 =>
CuS + O2 = Cu + SO2
C3H8 + O2 = CO2 + H2O =>
C3H8 + 5 O2 = 3 CO2 + 4 H2O
Fe + AgNO3 = Fe(NO3)2 + Ag =>
Fe + 2 AgNO3 = Fe(NO3)2 + 2 Ag
NaCl + H2SO4 = Na2SO4 + HCl =>
2 NaCl + H2SO4 = Na2SO4 + 2 HCl
Mg + Fe2O3 = Fe + MgO =>
3 Mg + Fe2O3 = 2 Fe + 3 MgO
Na3PO4 + SrCl2 = Sr3(PO4)2 + NaCl =>
2 Na3PO4 + 3 SrCl2 = Sr3(PO4)2 + 6 NaCl
P4 + Br2 = PBr3 =>
P4 + 6 Br2 = 4 PBr3
Na2O2(s) + H2O(l) = NaOH(aq) + O2(g) =>
2 Na2O2(s) + 2 H2O(l) = 4 NaOH(aq) + O2(g)
P + O = P4O10 =>
4 P + 10 O = P4O10
PbSO4 = PbSO3 + O2 =>
2 PbSO4 = 2 PbSO3 + O2
BaCl2 + NaHSO4 = BaSO4 + NaCl + HCl =>
BaCl2 + NaHSO4 = BaSO4 + NaCl + HCl
PbCO3 + Na2S = PbS + Na2CO3 =>
PbCO3 + Na2S = PbS + Na2CO3
Cl2 + NaBr = NaCl + Br2 =>
Cl2 + 2 NaBr = 2 NaCl + Br2
H2O + SO3 = H2SO4 =>
H2O + SO3 = H2SO4
H2O = H2 + O2 =>
2 H2O = 2 H2 + O2
Al + HCl = AlCl3 + H2 =>
2 Al + 6 HCl = 2 AlCl3 + 3 H2
Fe + Cl2 = FeCl3 =>
2 Fe + 3 Cl2 = 2 FeCl3
H2SO4 + NH4OH = H2O + (NH4)2SO4 =>
H2SO4 + 2 NH4OH = 2 H2O + (NH4)2SO4
P4 + Br2 = PBr3 =>
P4 + 6 Br2 = 4 PBr3
CrCl3 + Ba(OH)2 = BaCl2 + Cr(OH)3 =>
2 CrCl3 + 3 Ba(OH)2 = 3 BaCl2 + 2 Cr(OH)3
Mg + H3O{+} = Mg2{+} + H2 + H2O =>
4 Mg + 2 H3O{+} = 2 Mg2{+} + H2 + 2 H2O
Na2SO3 + HCl = SO2 + H2O + NaCl =>
Na2SO3 + 2 HCl = SO2 + H2O + 2 NaCl
Na2S + Pb = SPb + Na =>
Na2S + Pb = SPb + 2 Na
C5H12 + O2 = CO2 + H2O =>
C5H12 + 8 O2 = 5 CO2 + 6 H2O
(NH4)Br + HCl = NH4Cl + HBr =>
(NH4)Br + HCl = NH4Cl + HBr
NaOH + NH4Cl = NaCl + NH3 + H2O =>
NaOH + NH4Cl = NaCl + NH3 + H2O
PCl5 + P2O5 = POCl3 =>
3 PCl5 + P2O5 = 5 POCl3
Mg + O2 = MgO =>
2 Mg + O2 = 2 MgO
N2 + H2 = NH3 =>
N2 + 3 H2 = 2 NH3
CaCl2 + Na2CO3 = CaCO3 + NaCl =>
CaCl2 + Na2CO3 = CaCO3 + 2 NaCl
Ca(OH)2 + HCl = CaCl2 + H2O =>
Ca(OH)2 + 2 HCl = CaCl2 + 2 H2O
Fe + CI2 = FeCI2 =>
Fe + CI2 = FeCI2
NaOH + HCl = H2O + NaCl =>
NaOH + HCl = H2O + NaCl
Cu + HCl = CuCl2 + H2 =>
Cu + 2 HCl = CuCl2 + H2
ZnCl2 + (NH4)2SO3 = ZnSO3 + NH4Cl =>
ZnCl2 + (NH4)2SO3 = ZnSO3 + 2 NH4Cl
Ca3(PO4)2 + H3PO4 = Ca(H2PO4)2 =>
Ca3(PO4)2 + 4 H3PO4 = 3 Ca(H2PO4)2
Na2B4O7(s) + H2SO4(aq) + H2O(l) = H3BO3(s) + Na2SO4(aq) =>
Na2B4O7(s) + H2SO4(aq) + 5 H2O(l) = 4 H3BO3(s) + Na2SO4(aq)
NH3 + Na = NaNH2 + H2 =>
2 NH3 + 2 Na = 2 NaNH2 + H2
Ag + HCl = AgCl + H2 =>
2 Ag + 2 HCl = 2 AgCl + H2
NaCl + F2 = NaF + Cl2 =>
2 NaCl + F2 = 2 NaF + Cl2
HCO3(aq) + H2O(l) = H2CO3(aq) + OH =>
HCO3(aq) + H2O(l) = H2CO3(aq) + OH
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