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Zn + H2X4 = ZnX4 + H2
Fe3O4 + H2 = Fe + H2O =>
Fe3O4 + 4 H2 = 3 Fe + 4 H2O
Na2B4O7 + H2SO4 + H2O = H3BO3 + Na2SO4 =>
Na2B4O7 + H2SO4 + 5 H2O = 4 H3BO3 + Na2SO4
Pb + AgX3 = Pb(X3)2 + Ag =>
Pb + 2 AgX3 = Pb(X3)2 + 2 Ag
CaC2 + H2O = Ca(OH)2 + C2H2 =>
CaC2 + 2 H2O = Ca(OH)2 + C2H2
HNO3 + Cu = Cu(NO3)2 + NO2 + H2O =>
4 HNO3 + Cu = Cu(NO3)2 + 2 NO2 + 2 H2O
AgX3 + MgCl2 = Mg(X3)2 + AgCl =>
2 AgX3 + MgCl2 = Mg(X3)2 + 2 AgCl
Fe + S = FeS =>
Fe + S = FeS
C3H8 + O2 = CO2 + H2O =>
C3H8 + 5 O2 = 3 CO2 + 4 H2O
NO + O2 = NO2 =>
2 NO + O2 = 2 NO2
CO + O2 = CO2 =>
2 CO + O2 = 2 CO2
Fe + Cl2 = FeCl3 =>
2 Fe + 3 Cl2 = 2 FeCl3
Fe2O + C = Fe + CO =>
Fe2O + C = 2 Fe + CO
Fe2O3 + C = Fe + CO =>
Fe2O3 + 3 C = 2 Fe + 3 CO
H2SO4 + C = SO2 + CO2 + H2O =>
2 H2SO4 + C = 2 SO2 + CO2 + 2 H2O
H2S + O2 = SO2 + H2O =>
2 H2S + 3 O2 = 2 SO2 + 2 H2O
H2 + Cl2 = HCl =>
H2 + Cl2 = 2 HCl
NaOH + H2SO4 = Na2SO4 + H2O =>
2 NaOH + H2SO4 = Na2SO4 + 2 H2O
P + O2 = P2O5 =>
4 P + 5 O2 = 2 P2O5
Na + H2O = NaOH + H2 =>
2 Na + 2 H2O = 2 NaOH + H2
CH4 + Cl2 = CCl4 + HCl =>
CH4 + 4 Cl2 = CCl4 + 4 HCl
NaOH + HCl = NaCl + H2O =>
NaOH + HCl = NaCl + H2O
NH4Cl + Ca(OH)2 = CaCl2 + NH3 + H2O =>
2 NH4Cl + Ca(OH)2 = CaCl2 + 2 NH3 + 2 H2O
Fe2O3 + HNO3 = Fe(NO3)3 + H2O =>
Fe2O3 + 6 HNO3 = 2 Fe(NO3)3 + 3 H2O
Al4C3 + H2O = Al(OH)3 + CH4 =>
Al4C3 + 12 H2O = 4 Al(OH)3 + 3 CH4
Fe + Cl2 = FeCl3 =>
2 Fe + 3 Cl2 = 2 FeCl3
KClO3 + HCl = KCl + Cl2 + H2O =>
KClO3 + 6 HCl = KCl + 3 Cl2 + 3 H2O
C5H10 + O2 = CO2 + H2O =>
2 C5H10 + 15 O2 = 10 CO2 + 10 H2O
C8H18 + O2 = CO2 + H2O =>
2 C8H18 + 25 O2 = 16 CO2 + 18 H2O
C5H10O2 + O2 = CO2 + H2O =>
2 C5H10O2 + 13 O2 = 10 CO2 + 10 H2O
NaCl + H2O = NaOH + HCl =>
NaCl + H2O = NaOH + HCl
Ca3(PO4)2 + C + SiO2 = P + Ca(SiO3)2 + CO =>
Ca3(PO4)2 + 2 C + 6 SiO2 = 2 P + 3 Ca(SiO3)2 + 2 CO
CO + O2 = CO2 =>
2 CO + O2 = 2 CO2
Fe + H2O = Fe3O4 + H2 =>
3 Fe + 4 H2O = Fe3O4 + 4 H2
Ca + N2 = Ca3N2 =>
3 Ca + N2 = Ca3N2
C + O2 = CO =>
2 C + O2 = 2 CO
HgO = O2 + Hg =>
2 HgO = O2 + 2 Hg
CH4 + O2 = CO2 + H2O =>
CH4 + 2 O2 = CO2 + 2 H2O
HgO = O2 + Hg =>
2 HgO = O2 + 2 Hg
KNO3 = KNO2 + O2 =>
2 KNO3 = 2 KNO2 + O2
Ca + N2 = Ca3N2 =>
3 Ca + N2 = Ca3N2
Zn + KOH = K2ZnO2 + H2 =>
Zn + 2 KOH = K2ZnO2 + H2
Fe2O3 + CO = Fe + CO2 =>
Fe2O3 + 3 CO = 2 Fe + 3 CO2
PbO + NH3 = Pb + H2O + N2 =>
3 PbO + 2 NH3 = 3 Pb + 3 H2O + N2
MnO2 + KClO3 + KOH = K2MnO4 + KCl + H2O =>
3 MnO2 + KClO3 + 6 KOH = 3 K2MnO4 + KCl + 3 H2O
PbO2 = PbO + O2 =>
2 PbO2 = 2 PbO + O2
NO2 = NO + O2 =>
2 NO2 = 2 NO + O2
Pb3O4 = PbO + O2 =>
2 Pb3O4 = 6 PbO + O2
KNO3 = KNO2 + O2 =>
2 KNO3 = 2 KNO2 + O2
PbS + O2 = PbO + SO2 =>
2 PbS + 3 O2 = 2 PbO + 2 SO2
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