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2 H2S + 3 O2 = 2 SO2 + 2 H2O
KMnO4 + KNO2 + H2SO4 = MnSO4 + H2O + KNO3 + K2SO4 =>
2 KMnO4 + 5 KNO2 + 3 H2SO4 = 2 MnSO4 + 3 H2O + 5 KNO3 + K2SO4
H2SO4 + KOH = K2SO4 + H2O =>
H2SO4 + 2 KOH = K2SO4 + 2 H2O
CrO3 = Cr2O3 + O2 =>
4 CrO3 = 2 Cr2O3 + 3 O2
Na2CO3 + HCl = NaCl + H2O + CO2 =>
Na2CO3 + 2 HCl = 2 NaCl + H2O + CO2
HgO + HgS = Hg + SO2 =>
2 HgO + HgS = 3 Hg + SO2
Zn + HCl = ZnCl2 + H2 =>
Zn + 2 HCl = ZnCl2 + H2
FeSO4 + NaOH = Fe(OH)2 + (Na)2SO4 =>
FeSO4 + 2 NaOH = Fe(OH)2 + (Na)2SO4
NaCl(aq)KNO3(aq) = KCl(aq)NaNO3(aq) =>
NaCl(aq)KNO3(aq) = KCl(aq)NaNO3(aq)
Zn + KOH + H2O = Zn2[K(OH)4] + H2 =>
4 Zn + 2 KOH + 6 H2O = 2 Zn2[K(OH)4] + 3 H2
NaBr + CaF2 = NaF + CaBr2 =>
2 NaBr + CaF2 = 2 NaF + CaBr2
Nd2(CO3)3 + HCl = NdCl3 + H2CO3 =>
Nd2(CO3)3 + 6 HCl = 2 NdCl3 + 3 H2CO3
Ca + H2O = Ca(OH)2 + H2 =>
Ca + 2 H2O = Ca(OH)2 + H2
MgPdCl2 = MgCl2 + Pd =>
MgPdCl2 = MgCl2 + Pd
Ca3(PO4)2 + SiO2 + C = CaSiO3 + P4 + CO =>
2 Ca3(PO4)2 + 6 SiO2 + 10 C = 6 CaSiO3 + P4 + 10 CO
CaOH = Ca2OH2O =>
2 CaOH = Ca2OH2O
(NH4)3PO4(aq) + Zn(NO3)2(aq) = NH4NO3(aq) + Zn3(PO4)2 =>
2(NH4)3PO4(aq) + 3 Zn(NO3)2(aq) = 6 NH4NO3(aq) + Zn3(PO4)2
H2 + N2 = NH3 =>
3 H2 + N2 = 2 NH3
Na + H2O = NaOH + H =>
Na + H2O = NaOH + H
H3PO4 = H4P2O7 + H2O =>
2 H3PO4 = H4P2O7 + H2O
C6H12 = C3H6 =>
C6H12 = 2 C3H6
MgO + SO2 + O2 = MgSO4 =>
2 MgO + 2 SO2 + O2 = 2 MgSO4
MnO2 + H2O = Mn(OH)2 + H2O2 =>
MnO2 + 2 H2O = Mn(OH)2 + H2O2
FeCl2 + O2 = Fe3O4 + Cl2 =>
3 FeCl2 + 2 O2 = Fe3O4 + 3 Cl2
NH4Cl = Cl + NH4 =>
NH4Cl = Cl + NH4
Ga + O2 = Ga2O3 =>
4 Ga + 3 O2 = 2 Ga2O3
Li3N + HCl = LiCl + NH3 =>
Li3N + 3 HCl = 3 LiCl + NH3
NaHSO3 + HCl = SO2 + NaCl + H2O =>
NaHSO3 + HCl = SO2 + NaCl + H2O
SiO2 + CaCO3 + FeO = Ca3Fe3Si3O12 + CO2 =>
3 SiO2 + 3 CaCO3 + 3 FeO = Ca3Fe3Si3O12 + 3 CO2
NaMnO4 + Bi2(SO4)3 + H2O = MnSO4 + H2SO4 + Na2SO4 + H3BiO4 =>
4 NaMnO4 + 5 Bi2(SO4)3 + 24 H2O = 4 MnSO4 + 9 H2SO4 + 2 Na2SO4 + 10 H3BiO4
SHg2 + HNO3 + HCl = Cl2Hg + NO + H2O + S =>
3 SHg2 + 4 HNO3 + 12 HCl = 6 Cl2Hg + 4 NO + 8 H2O + 3 S
Mg + O2 = MgO =>
2 Mg + O2 = 2 MgO
Fe(s) + O2(g) = Fe2O3(s) =>
4 Fe(s) + 3 O2(g) = 2 Fe2O3(s)
NH4VO3 + H2SO4 + H2O2 = [VO(O2)]2SO4 + (NH4)2SO4 + H2O =>
2 NH4VO3 + 2 H2SO4 + 2 H2O2 = [VO(O2)]2SO4 + (NH4)2SO4 + 4 H2O
Fe + H2O = Fe3O4 + H2* =>
3 Fe + 4 H2O = Fe3O4 + 4 H2*
Zn + Ca(OH)2 = Zn(OH)2 + Ca =>
Zn + Ca(OH)2 = Zn(OH)2 + Ca
Tc2O7 + CCl4 = TcCl4 + COCl2 + Cl2 =>
Tc2O7 + 7 CCl4 = 2 TcCl4 + 7 COCl2 + 3 Cl2
TiCl3 + N2H6SO4 = N2 + Ti + HCl + H2SO4 =>
4 TiCl3 + 3 N2H6SO4 = 3 N2 + 4 Ti + 12 HCl + 3 H2SO4
Na + O2 = Na2O =>
4 Na + O2 = 2 Na2O
P4O10 + H2O = H3PO4 =>
P4O10 + 6 H2O = 4 H3PO4
NiCl2 + Na2CO3 = NiCO3 + NaCl =>
NiCl2 + Na2CO3 = NiCO3 + 2 NaCl
TiCl3 + N2H6SO4 = N2 + Ti + HCl + H2SO4 =>
4 TiCl3 + 3 N2H6SO4 = 3 N2 + 4 Ti + 12 HCl + 3 H2SO4
Al + H2SO4 = Al2(SO4)3 + H2 =>
2 Al + 3 H2SO4 = Al2(SO4)3 + 3 H2
Fe2P + O2 = FeO + P2O5 =>
4 Fe2P + 9 O2 = 8 FeO + 2 P2O5
CO2 + H2O = C2H6 + O2 =>
4 CO2 + 6 H2O = 2 C2H6 + 7 O2
Pb(NO3)2NaOH = Pb(OH)Na(NO3)2 =>
Pb(NO3)2NaOH = Pb(OH)Na(NO3)2
BaO2 + HCl = H2O2 + BaCl2 =>
BaO2 + 2 HCl = H2O2 + BaCl2
Cr2O3 + HNO3 + KOH = K2CrO4 + HNO2 + H2O =>
Cr2O3 + 3 HNO3 + 4 KOH = 2 K2CrO4 + 3 HNO2 + 2 H2O
AgBr + GaPO4 = Ag3PO4 + GaBr3 =>
3 AgBr + GaPO4 = Ag3PO4 + GaBr3
C6H11Cl + NH3 = C6H11NH3Cl =>
C6H11Cl + NH3 = C6H11NH3Cl
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