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2 Ni3S2 + 3 O2 = 6 NiO + 2 S2
H2O2 + PBS = PBSO4 + H2O =>
4 H2O2 + PBS = PBSO4 + 4 H2O
Ba + Ag2SO4 = Ag2 + BaSO4 =>
Ba + Ag2SO4 = Ag2 + BaSO4
HC2H3O2 + Al2O3 = H2O + Al(C2H3O2)3 =>
6 HC2H3O2 + Al2O3 = 3 H2O + 2 Al(C2H3O2)3
Mg2 + N3 = Mg2N2 =>
3 Mg2 + 2 N3 = 3 Mg2N2
NaNO3 + PbO = Pb(NO3)2 + Na2O =>
2 NaNO3 + PbO = Pb(NO3)2 + Na2O
MnO4{-} + H3O{+} + Sn{2+} = Mn{2+} + Sn{4+} + H2O =>
2 MnO4{-} + 16 H3O{+} + 5 Sn{2+} = 2 Mn{2+} + 5 Sn{4+} + 24 H2O
H2S + Cd = CdS + H2 =>
H2S + Cd = CdS + H2
CH3COOH + Ca = (CH3COO)2Ca + H2 =>
2 CH3COOH + Ca = (CH3COO)2Ca + H2
Al(s) + HCl(g) = AlCl3(s) + H2(g) =>
2 Al(s) + 6 HCl(g) = 2 AlCl3(s) + 3 H2(g)
CH4 + H2O = CO + H2 =>
CH4 + H2O = CO + 3 H2
C + H2 = C3H8 =>
3 C + 4 H2 = C3H8
Al + O2 = Al2O3 =>
4 Al + 3 O2 = 2 Al2O3
Al + NaHCO3 = Al2(CO3)3 + NaH =>
2 Al + 3 NaHCO3 = Al2(CO3)3 + 3 NaH
Zn + SH4 = H2 + ZnS =>
Zn + SH4 = 2 H2 + ZnS
PbSO4 + NaHCO3 = PbHCO3 + NaSO4 =>
PbSO4 + NaHCO3 = PbHCO3 + NaSO4
N2 + Na2CO3 + C2 = CO + NaCN =>
N2 + Na2CO3 + 2 C2 = 3 CO + 2 NaCN
Ra + C = RaC2 =>
Ra + 2 C = RaC2
NO + NH4OH = NH4NO3 + NH3 =>
8 NO + 7 NH4OH = 5 NH4NO3 + 5 NH3
K2S(aq) + Pb(NO3)2(aq) = KNO3(aq) + PbS(aq) =>
K2S(aq) + Pb(NO3)2(aq) = 2 KNO3(aq) + PbS(aq)
CaO + NaCl = CaOCl + Na =>
CaO + NaCl = CaOCl + Na
Na + H2O = NaOH + H2 =>
2 Na + 2 H2O = 2 NaOH + H2
NaN3 = Na + N2 =>
2 NaN3 = 2 Na + 3 N2
HI(aq) + CaCO3(s) = CaI2(aq) + CO2(g) + H2O(l) =>
2 HI(aq) + CaCO3(s) = CaI2(aq) + CO2(g) + H2O(l)
H2SO4 + NaOH = Na2SO4 + H2O =>
H2SO4 + 2 NaOH = Na2SO4 + 2 H2O
H2 + O2 = H2O =>
2 H2 + O2 = 2 H2O
V2O5 + CaS = CaO + V2S5 =>
V2O5 + 5 CaS = 5 CaO + V2S5
Fe + Na2O = FeO + Na =>
Fe + Na2O = FeO + 2 Na
P4O6(s) + H2O(l) = H3PO3 =>
P4O6(s) + 6 H2O(l) = 4 H3PO3
Al + NO3{-} + H2O = NH3{+} + Al(OH)4{-} + H{+} =>
7 Al + 3 NO3{-} + 19 H2O = 3 NH3{+} + 7 Al(OH)4{-} + H{+}
Mg + Pb(OAc)2 = (AcO)Mg + Pb =>
2 Mg + Pb(OAc)2 = 2(AcO)Mg + Pb
CaCO3MgCO3 = CO2 + CaO + MgO =>
CaCO3MgCO3 = 2 CO2 + CaO + MgO
NH3 + O2 = NO + H2O =>
4 NH3 + 5 O2 = 4 NO + 6 H2O
Ca2O2 + C = Ca2C4 + CO2 =>
Ca2O2 + 5 C = Ca2C4 + CO2
OsO4 + HF = Os + O2F2 + H2O =>
3 OsO4 + 8 HF = 3 Os + 4 O2F2 + 4 H2O
H2O + LiCl = Li2O + HCl =>
H2O + 2 LiCl = Li2O + 2 HCl
CaZnO2 + H2O = Ca[Zn(OH)4] =>
CaZnO2 + 2 H2O = Ca[Zn(OH)4]
C6H5CH2Cl + (NH2)2CS = C6H5CH2Cl(NH2)2CS =>
C6H5CH2Cl + (NH2)2CS = C6H5CH2Cl(NH2)2CS
KCO3 + BaSO3 = KSO3 + BaCO3 =>
KCO3 + BaSO3 = KSO3 + BaCO3
KCIO3 = KCI + O2 =>
2 KCIO3 = 2 KCI + 3 O2
Bi(NO3)3 + K2HPO4 = BiHPO4 + K2(NO3)3 =>
Bi(NO3)3 + K2HPO4 = BiHPO4 + K2(NO3)3
C2S + O2 = CO + SO2 =>
C2S + 2 O2 = 2 CO + SO2
K3PO4 + Cu(NO3)2 = KNO3 + Cu3(PO4)2 =>
2 K3PO4 + 3 Cu(NO3)2 = 6 KNO3 + Cu3(PO4)2
CaO + MnI4 = MnO2 + CaI2 =>
2 CaO + MnI4 = MnO2 + 2 CaI2
C6H6 + O2 = CO2 + H2O =>
2 C6H6 + 15 O2 = 12 CO2 + 6 H2O
K3PO4 + Cu(NO3)2 = KNO3 + Cu3(PO4)2 =>
2 K3PO4 + 3 Cu(NO3)2 = 6 KNO3 + Cu3(PO4)2
Al + H2O = Al(OH)3 + H2 =>
2 Al + 6 H2O = 2 Al(OH)3 + 3 H2
CH3COOH + Ca(OH)2 = CH3COO(OH)2 + CaH =>
CH3COOH + Ca(OH)2 = CH3COO(OH)2 + CaH
Al + H2O = Al(OH)3 + H2 =>
2 Al + 6 H2O = 2 Al(OH)3 + 3 H2
Fe + HCl = FeCl2 + H2 =>
Fe + 2 HCl = FeCl2 + H2
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