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Zn + 2 HCl = ZnCl2 + H2
Na + S = NaS =>
Na + S = NaS
Al2O3 + NaOH + H2O = Na[Al(OH)4] =>
Al2O3 + 2 NaOH + 3 H2O = 2 Na[Al(OH)4]
ZnO + H2O = Zn(OH)2 =>
ZnO + H2O = Zn(OH)2
Na + S = Na2S =>
2 Na + S = Na2S
Fe2O3(s) + H2O(l) = Fe(OH)3 =>
Fe2O3(s) + 3 H2O(l) = 2 Fe(OH)3
H2 + Br2 = HBr =>
H2 + Br2 = 2 HBr
Pb + H2SO4 = Pb(SO4)2 + H2 =>
Pb + 2 H2SO4 = Pb(SO4)2 + 2 H2
NO3 + FeSO4 + H2SO4 = NO + Fe2(SO4)3 + H2O =>
NO3 + 4 FeSO4 + 2 H2SO4 = NO + 2 Fe2(SO4)3 + 2 H2O
Zn + HCl = ZnCl2 + H =>
Zn + 2 HCl = ZnCl2 + 2 H
HNO3 + Mg(OH)2 = H2O + Mg(NO3)2 =>
2 HNO3 + Mg(OH)2 = 2 H2O + Mg(NO3)2
H2O = H2 + O2 =>
2 H2O = 2 H2 + O2
H2CO3 + Sr(OH)2 = SrCO3 + H2O =>
H2CO3 + Sr(OH)2 = SrCO3 + 2 H2O
SO2 + Li2O = Li2O2 + SO =>
SO2 + Li2O = Li2O2 + SO
S2H5 + O2 = SO2 + H2O =>
4 S2H5 + 13 O2 = 8 SO2 + 10 H2O
Fe + CuSO4 = FeSO4 + Cu =>
Fe + CuSO4 = FeSO4 + Cu
Pb(NO3)2 = PbO + NO2 + O2 =>
2 Pb(NO3)2 = 2 PbO + 4 NO2 + O2
Pb(NO3)2 + NaCl = PbCl2 + Na(NO3) =>
Pb(NO3)2 + 2 NaCl = PbCl2 + 2 Na(NO3)
Ca(OH)2 + H3PO4 = Ca3(PO4)2 + H2O =>
3 Ca(OH)2 + 2 H3PO4 = Ca3(PO4)2 + 6 H2O
Pb(NO3)2 + NaCl = PbCl2 + NaNO3 =>
Pb(NO3)2 + 2 NaCl = PbCl2 + 2 NaNO3
Pb(NO3)2 + KI = PbI2 + KNO3 =>
Pb(NO3)2 + 2 KI = PbI2 + 2 KNO3
Al + S = Al2S3 =>
2 Al + 3 S = Al2S3
Pb(NO3)2 + KI = PbI2 + KNO3 =>
Pb(NO3)2 + 2 KI = PbI2 + 2 KNO3
Mg + HCl = MgCl2 + H2 =>
Mg + 2 HCl = MgCl2 + H2
FeSO4 + NaOH = Fe(OH)2 + Na2SO4 =>
FeSO4 + 2 NaOH = Fe(OH)2 + Na2SO4
Sn + H3PO4 = Sn3(PO4)4 + H2 =>
3 Sn + 4 H3PO4 = Sn3(PO4)4 + 6 H2
HI + LiOH = H2O + LiI =>
HI + LiOH = H2O + LiI
LiOH + H2CO3 = Li2CO3 + H2O =>
2 LiOH + H2CO3 = Li2CO3 + 2 H2O
HI + Al(OH)3 = AlI3 + H2O =>
3 HI + Al(OH)3 = AlI3 + 3 H2O
Pb(ClO3)2 + K2SO4 = PbSO4 + KClO3 =>
Pb(ClO3)2 + K2SO4 = PbSO4 + 2 KClO3
Ca(OH)2 + H3PO4 = Ca3(PO4)2 + H2O =>
3 Ca(OH)2 + 2 H3PO4 = Ca3(PO4)2 + 6 H2O
C + O2 = CO =>
2 C + O2 = 2 CO
CaO + HCl = CaCl2 + H2O =>
CaO + 2 HCl = CaCl2 + H2O
NaOH + H3PO4 = Na3PO4 + H2O =>
3 NaOH + H3PO4 = Na3PO4 + 3 H2O
NH3 + O2 = NO + H2O =>
4 NH3 + 5 O2 = 4 NO + 6 H2O
Ag + HNO3 = AgNO3 + NO + H2O =>
3 Ag + 4 HNO3 = 3 AgNO3 + NO + 2 H2O
K + H2O = KOH + H2 =>
2 K + 2 H2O = 2 KOH + H2
C3H8 + O2 = CO2 + H2O =>
C3H8 + 5 O2 = 3 CO2 + 4 H2O
CH3CHNO2CH3 + NaOH + Al + H2O = NaAl(OH)4 + CH3CHNH2CH3 =>
CH3CHNO2CH3 + 2 NaOH + 2 Al + 4 H2O = 2 NaAl(OH)4 + CH3CHNH2CH3
Zn + CuCl = Cu + ZnCl2 =>
Zn + 2 CuCl = 2 Cu + ZnCl2
Pb(NO3)2 = PbO + NO2 + O2 =>
2 Pb(NO3)2 = 2 PbO + 4 NO2 + O2
H2SO4 + NaOH = Na2SO4 + H2O =>
H2SO4 + 2 NaOH = Na2SO4 + 2 H2O
Fe(OH)2 + H2O2 = Fe(OH)3 =>
2 Fe(OH)2 + H2O2 = 2 Fe(OH)3
C4H10 + O2 = CO2 + H2O =>
2 C4H10 + 13 O2 = 8 CO2 + 10 H2O
N2 + H2 = NH3 =>
N2 + 3 H2 = 2 NH3
HCl + NaOH = NaCl + H2O =>
HCl + NaOH = NaCl + H2O
CH4 + O2 = CO2 + H2O =>
CH4 + 2 O2 = CO2 + 2 H2O
Ba(ClO4)2 = Ba + Cl2 + O2 =>
Ba(ClO4)2 = Ba + Cl2 + 4 O2
CaO + HNO3 = Ca(NO3)2 + H2O =>
CaO + 2 HNO3 = Ca(NO3)2 + H2O
Ca + HCl = CaCl2 + H =>
Ca + 2 HCl = CaCl2 + 2 H
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