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2 Fe{3+} + C2O4{2-}l = 2 CO2 + 2 Fe{2+}
Pb + FeCl2 = PbCl2 + Fe =>
Pb + FeCl2 = PbCl2 + Fe
KH + H3Po4 = K3Po4 + H2 =>
3 KH + H3Po4 = K3Po4 + 3 H2
Mn(NO3)2 + NaS = MnS2 + NaNO3 =>
Mn(NO3)2 + 2 NaS = MnS2 + 2 NaNO3
Fe2O3 + CO = Fe + CO2 =>
Fe2O3 + 3 CO = 2 Fe + 3 CO2
HNCO + NO2 = N2 + CO2 + H2O =>
8 HNCO + 6 NO2 = 7 N2 + 8 CO2 + 4 H2O
HCN + KCN = HK + CN =>
HCN + KCN = HK + 2 CN
FeOH2H2SO4 = FeH2SO4H2O =>
FeOH2H2SO4 = FeH2SO4H2O
PbO2H2 + HCl = H2O + PbCl2 =>
PbO2H2 + 2 HCl = 2 H2O + PbCl2
Ni + CO = Ni(CO)4 =>
Ni + 4 CO = Ni(CO)4
NaClO + HClO = HCl + NaClO3 =>
NaClO + 2 HClO = 2 HCl + NaClO3
H6C2O + O2 = H2O + O2C =>
H6C2O + 3 O2 = 3 H2O + 2 O2C
TiO2 + Na2CO3 = Na8Ti5O14 + CO2 =>
5 TiO2 + 4 Na2CO3 = Na8Ti5O14 + 4 CO2
Ag + AuN = Au + Ag3N =>
3 Ag + AuN = Au + Ag3N
La2O3(s) + H2O(l) = La(OH)3 =>
La2O3(s) + 3 H2O(l) = 2 La(OH)3
Mg(HCO3)2 = CO2 + H2O + MgCO3 =>
Mg(HCO3)2 = CO2 + H2O + MgCO3
Pb(s) + Cu(NO3)2(aq) = Pb(NO3)2 + Cu =>
Pb(s) + Cu(NO3)2(aq) = Pb(NO3)2 + Cu
Pb(NO3)2 + KI = KNO3 + Pb(I)2 =>
Pb(NO3)2 + 2 KI = 2 KNO3 + Pb(I)2
(NH4)2CO3 + Mg(NO3)2 = (NH4)NO3 + MgCO3 =>
(NH4)2CO3 + Mg(NO3)2 = 2(NH4)NO3 + MgCO3
(Cu(NH3)4) + K4[Fe(CN)6] = Cu2[Fe(CN)6] + NH3 + K =>
2(Cu(NH3)4) + K4[Fe(CN)6] = Cu2[Fe(CN)6] + 8 NH3 + 4 K
FeCO3 + H2SO4 = Fe2(SO4)3 + SO2 + CO2 + H2O =>
2 FeCO3 + 4 H2SO4 = Fe2(SO4)3 + SO2 + 2 CO2 + 4 H2O
CuBr + Mg = CuMg + Br =>
CuBr + Mg = CuMg + Br
NaCl(aq) + Mg(NO3)2(aq) = NaNO3(aq) + MgCl2(aq) =>
2 NaCl(aq) + Mg(NO3)2(aq) = 2 NaNO3(aq) + MgCl2(aq)
MgN + H2O = N2 + H2 + MgO =>
2 MgN + 2 H2O = N2 + 2 H2 + 2 MgO
Fe + Cl2 = FeCl3 =>
2 Fe + 3 Cl2 = 2 FeCl3
C7H8 + CH3OH = C9H12 + H2O =>
C7H8 + 2 CH3OH = C9H12 + 2 H2O
F2 + CH4 = CF2 + HF =>
3 F2 + CH4 = CF2 + 4 HF
Ni(CH3COO)2 + NaOH = Ni(OH)2 + Na(CH3COO) =>
Ni(CH3COO)2 + 2 NaOH = Ni(OH)2 + 2 Na(CH3COO)
AgNO3 + K2(CrO4)2 = AgCrO4 + KNO3 =>
2 AgNO3 + K2(CrO4)2 = 2 AgCrO4 + 2 KNO3
CaMg(CO3)2 = CaCO3 + MgCO3 =>
CaMg(CO3)2 = CaCO3 + MgCO3
HF + Fe(ClO4)3 = HClO4 + FeF3 =>
3 HF + Fe(ClO4)3 = 3 HClO4 + FeF3
C2H5OH + Cr2O7{-2} + H{+} = CH3CHO + Cr{+3} + H2O =>
3 C2H5OH + Cr2O7{-2} + 8 H{+} = 3 CH3CHO + 2 Cr{+3} + 7 H2O
Ni + HCI = NiCI + H2 =>
2 Ni + 2 HCI = 2 NiCI + H2
KC8H5O4 + NaOH = KNaC8H4O4 + H2O =>
KC8H5O4 + NaOH = KNaC8H4O4 + H2O
Pb + S2 = PbS =>
2 Pb + S2 = 2 PbS
Sn(s) + HCl(aq) = SnCl2(aq) + H2(g) =>
Sn(s) + 2 HCl(aq) = SnCl2(aq) + H2(g)
Li(OH) + HNO3 = LiNO3 + H2O =>
Li(OH) + HNO3 = LiNO3 + H2O
SiBr4 + H2O = SiO2 + HBr =>
SiBr4 + 2 H2O = SiO2 + 4 HBr
Fe + Hg2O = Hg + FeO =>
Fe + Hg2O = 2 Hg + FeO
PbS(s) + HCl(aq) = PbCl2(s) + H2S(g) =>
PbS(s) + 2 HCl(aq) = PbCl2(s) + H2S(g)
Mn2O7 = MnO2 + O2 =>
2 Mn2O7 = 4 MnO2 + 3 O2
C27H44O + O2 = CO + H2O =>
C27H44O + 24 O2 = 27 CO + 22 H2O
Sb + NO3 = Sb4O6 + NO =>
4 Sb + 3 NO3 = Sb4O6 + 3 NO
H2O2 = H2O + O2 =>
2 H2O2 = 2 H2O + O2
Sr(NO3)2 + KIO3 = K(NO3)2 + SrIO3 =>
Sr(NO3)2 + KIO3 = K(NO3)2 + SrIO3
Cu(SO4) + KI = CuI + I2 + K2SO4 =>
2 Cu(SO4) + 4 KI = 2 CuI + I2 + 2 K2SO4
CuSO4 + NaOH + HCHO = Cu2O + HCOOH + Na2SO4 + H2O =>
2 CuSO4 + 4 NaOH + HCHO = Cu2O + HCOOH + 2 Na2SO4 + 2 H2O
HF + H2SO4 = F2SO4 + H2 =>
2 HF + H2SO4 = F2SO4 + 2 H2
Ni(s) + Cu(NO3)2(aq) = Cu(s) + Ni(NO3)3(aq) =>
2 Ni(s) + 3 Cu(NO3)2(aq) = 3 Cu(s) + 2 Ni(NO3)3(aq)
SO3 + C = SO2 + CO2 =>
2 SO3 + C = 2 SO2 + CO2
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