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PbCO3 + 2 Na = Na2CO3 + Pb
Na2B4O7(s) + H2SO4(aq) + H2O(l) = H3BO3(s) + Na2SO4(aq) =>
Na2B4O7(s) + H2SO4(aq) + 5 H2O(l) = 4 H3BO3(s) + Na2SO4(aq)
S5 + Cl2 = S2Cl2 =>
2 S5 + 5 Cl2 = 5 S2Cl2
P4 + Cl5 = PCl =>
5 P4 + 4 Cl5 = 20 PCl
Ca + C2 = CaC2 =>
Ca + C2 = CaC2
H2S + NO3 = S + NO2 + H2O =>
H2S + NO3 = S + NO2 + H2O
CuSO4 + NaOH = Cu(OH)2 + Na2SO4 =>
CuSO4 + 2 NaOH = Cu(OH)2 + Na2SO4
CaCO3 + CuO = CaCuO2 + CO2 =>
CaCO3 + CuO = CaCuO2 + CO2
Mg + H2O = Mg(OH)2 + H2 =>
Mg + 2 H2O = Mg(OH)2 + H2
AlBr3 + H3PO4 = AlPO4 + HBr =>
AlBr3 + H3PO4 = AlPO4 + 3 HBr
N2H4 + H2O2 = N2 + H2O =>
N2H4 + 2 H2O2 = N2 + 4 H2O
P4 + O2 = P2O3 =>
P4 + 3 O2 = 2 P2O3
NH3 = N2 + H2 =>
2 NH3 = N2 + 3 H2
(NH4)2CO3 = NH3 + H2O + CO2 =>
(NH4)2CO3 = 2 NH3 + H2O + CO2
AlN + O2 = Al2O3 + NO =>
4 AlN + 5 O2 = 2 Al2O3 + 4 NO
Cu + H2S = Cu2S + H2 =>
2 Cu + H2S = Cu2S + H2
Fe(ClO3)2 = FeCl2 + O2 =>
Fe(ClO3)2 = FeCl2 + 3 O2
CaCO3 = CaO + CO2 =>
CaCO3 = CaO + CO2
Zn(OH)2 + OH = ZnO2 + H2O =>
Zn(OH)2 + 2 OH = ZnO2 + 2 H2O
Na2CO3 + COCl2 + H2O = NaHCO3 + NaCl =>
3 Na2CO3 + COCl2 + 2 H2O = 4 NaHCO3 + 2 NaCl
N2 + H2 = NH3 =>
N2 + 3 H2 = 2 NH3
NaOH(aq) + H2SO4(aq) = Na2SO4(aq) + H2O(l) =>
2 NaOH(aq) + H2SO4(aq) = Na2SO4(aq) + 2 H2O(l)
AgNO3 + H3PO4 = Ag3PO4 + HNO3 =>
3 AgNO3 + H3PO4 = Ag3PO4 + 3 HNO3
KO2H2O = KOH + O2 + H2O2 =>
2 KO2H2O = 2 KOH + O2 + H2O2
I2 + Cl2 + H2O = HIO3 + HCl =>
I2 + 5 Cl2 + 6 H2O = 2 HIO3 + 10 HCl
P + F = P3F =>
3 P + F = P3F
ZnCO3 + HF = H2O + CO2 + ZnF2 =>
ZnCO3 + 2 HF = H2O + CO2 + ZnF2
N2O4 + H2O = HNO3 + HNO2 =>
N2O4 + H2O = HNO3 + HNO2
H2CO3 + Sr(OH)2 = SrCO3 + H2O =>
H2CO3 + Sr(OH)2 = SrCO3 + 2 H2O
Li + NO3 = Li(NO3) =>
Li + NO3 = Li(NO3)
C4H12N2 + C4H4Cl2O2 = C8H14N2O2 + HCl =>
C4H12N2 + C4H4Cl2O2 = C8H14N2O2 + 2 HCl
C6H12O6 + I2 + H2O = C6H12O7 + I{-} + H{+} =>
C6H12O6 + I2 + H2O = C6H12O7 + 2 I{-} + 2 H{+}
KI + Cl2 = KCl + I2 =>
2 KI + Cl2 = 2 KCl + I2
MnO2 + HCl = MnCl2 + H2O + Cl2 =>
MnO2 + 4 HCl = MnCl2 + 2 H2O + Cl2
CO2 + O3 = CO5 =>
CO2 + O3 = CO5
NaOH + CuCl2 = Cu(OH)2 + NaCl =>
2 NaOH + CuCl2 = Cu(OH)2 + 2 NaCl
MgBr2 + Al = Mg + AlBr3 =>
3 MgBr2 + 2 Al = 3 Mg + 2 AlBr3
Na2(CrO4) + CoCl2 = Co(CrO4) + NaCl =>
Na2(CrO4) + CoCl2 = Co(CrO4) + 2 NaCl
C3H8 + O2 = CO2 + H2O =>
C3H8 + 5 O2 = 3 CO2 + 4 H2O
RbOH + H4SiO4 = Rb4SiO4 + H2O =>
4 RbOH + H4SiO4 = Rb4SiO4 + 4 H2O
K + Br2 = KBr =>
2 K + Br2 = 2 KBr
N2O4 + KOH = H2O + KNO2 + KNO3 =>
N2O4 + 2 KOH = H2O + KNO2 + KNO3
(NH4)2PtCl6 = N2 + NH3 + HCl + Pt =>
3(NH4)2PtCl6 = 2 N2 + 2 NH3 + 18 HCl + 3 Pt
AsCl3 + H2S = As2S3 + HCl =>
2 AsCl3 + 3 H2S = As2S3 + 6 HCl
KClO3 = KCl + O2 =>
2 KClO3 = 2 KCl + 3 O2
Na3PO4 + FeCl3 = Fe + NaCl + PO4 =>
Na3PO4 + FeCl3 = Fe + 3 NaCl + PO4
Mg + O2 = MgO =>
2 Mg + O2 = 2 MgO
KOH + MgSO4 = K2SO4 + Mg(OH)2 =>
2 KOH + MgSO4 = K2SO4 + Mg(OH)2
UO2SO4 + KOH = K2U2O7 + K2SO4 + H2O =>
2 UO2SO4 + 6 KOH = K2U2O7 + 2 K2SO4 + 3 H2O
HBr + O = H2O + Br =>
2 HBr + O = H2O + 2 Br
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