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4 FeS2 + 11 O2 = 2 Fe2O3 + 8 SO2
Mg + Sn(OH)4 = Mg(OH)2 + Sn =>
2 Mg + Sn(OH)4 = 2 Mg(OH)2 + Sn
Fe2O3 + Na2CO3 = CO2 + NaFeO2 =>
Fe2O3 + Na2CO3 = CO2 + 2 NaFeO2
Cr(OH)3 = Cr3 + O2 + H2O =>
12 Cr(OH)3 = 4 Cr3 + 9 O2 + 18 H2O
Na3P + CaF2 = NaF + Ca3P2 =>
2 Na3P + 3 CaF2 = 6 NaF + Ca3P2
KClO3 + HCl = KCl + H2OCl2 =>
KClO3 + 6 HCl = KCl + 3 H2OCl2
CrO + HI = CrI2 + H2O =>
CrO + 2 HI = CrI2 + H2O
CH3CH2OH + O2 = CO2 + H2O = =>
CH3CH2OH + 3 O2 = 2 CO2 + 3 H2O
N2 + H2 = NH3 =>
N2 + 3 H2 = 2 NH3
(NH4)2CrO4 + Al2(SO4)3 = (NH4)2SO4 + Al2(CrO4)3 =>
3(NH4)2CrO4 + Al2(SO4)3 = 3(NH4)2SO4 + Al2(CrO4)3
Mg(OH)2 + (NH4)2CO3 = (MgOH)2CO3 + NH4OH =>
2 Mg(OH)2 + (NH4)2CO3 = (MgOH)2CO3 + 2 NH4OH
(CaCO3) = (CaO) + (CO2) =>
(CaCO3) = (CaO) + (CO2)
MgSO4 + BaCl2 = BaSO4 + MgCl2 =>
MgSO4 + BaCl2 = BaSO4 + MgCl2
Mn(ClO3)2 = ClO3 + Mn =>
Mn(ClO3)2 = 2 ClO3 + Mn
HCOONH4 + HI = HCOOH + NH4I =>
HCOONH4 + HI = HCOOH + NH4I
KI + NaNO2 + HCl = NaI + I2 + NO + H2O + KCl =>
4 KI + 2 NaNO2 + 4 HCl = 2 NaI + I2 + 2 NO + 2 H2O + 4 KCl
Ca2(s) + H2O(l) = Ca(OH)2(aq) + H2(g) =>
Ca2(s) + 4 H2O(l) = 2 Ca(OH)2(aq) + 2 H2(g)
C7H6O3 + H2O2 = CO2 + H2O =>
C7H6O3 + 14 H2O2 = 7 CO2 + 17 H2O
Zn + FeNO3 = Zn(NO3)2 + Fe2 =>
Zn + 2 FeNO3 = Zn(NO3)2 + Fe2
C2H5 + Cl2 = C2H4 + HCl =>
2 C2H5 + Cl2 = 2 C2H4 + 2 HCl
C5H11OH + K2Cr2O7 + HCl = C4H9COOH + CrCl3 + H2O + KCl =>
3 C5H11OH + 2 K2Cr2O7 + 16 HCl = 3 C4H9COOH + 4 CrCl3 + 11 H2O + 4 KCl
V2(CrO4)5 + Al(NO3)3 = V(NO3)5 + Al2(CrO4)3 =>
3 V2(CrO4)5 + 10 Al(NO3)3 = 6 V(NO3)5 + 5 Al2(CrO4)3
As2S3(s) + H2O2(aq) + OH{-} = AsO4{3-}(aq) + SO4{2-}(aq) + H2O =>
As2S3(s) + 14 H2O2(aq) + 12 OH{-} = 2 AsO4{3-}(aq) + 3 SO4{2-}(aq) + 20 H2O
Cu(OH)2 + HNO3 = H2O + CuHNO4 =>
Cu(OH)2 + HNO3 = H2O + CuHNO4
KMnO4 + S + HCl = SO2 + MnCl2 + KCl + H2O =>
4 KMnO4 + 5 S + 12 HCl = 5 SO2 + 4 MnCl2 + 4 KCl + 6 H2O
CuCl2(aq) + NaOH = Cu(OH)2 + NaCl =>
CuCl2(aq) + 2 NaOH = Cu(OH)2 + 2 NaCl
N2 + H2 = NH3 =>
N2 + 3 H2 = 2 NH3
AgBr + H2SO4 = Ag2SO4 + HBr =>
2 AgBr + H2SO4 = Ag2SO4 + 2 HBr
Bi + HNO3 = Bi(NO3)3 + H2O + N2O2 =>
2 Bi + 8 HNO3 = 2 Bi(NO3)3 + 4 H2O + N2O2
C2H5 + Cl2 = C2H5Cl =>
2 C2H5 + Cl2 = 2 C2H5Cl
Cu(OH)2 + HNO3 = H2O + CuHNO4 =>
Cu(OH)2 + HNO3 = H2O + CuHNO4
C2H5 + Cl2 = C2H4Cl2 + HCl =>
2 C2H5 + 3 Cl2 = 2 C2H4Cl2 + 2 HCl
Cu(OH)2 + HNo3 = Cu(No3)2 + H2O =>
Cu(OH)2 + 2 HNo3 = Cu(No3)2 + 2 H2O
C3H7OOH + O2 = CO2 + H2O =>
C3H7OOH + 4 O2 = 3 CO2 + 4 H2O
H2SO3(aq) + KOH(aq) = H2O(l) + K2SO3(aq) =>
H2SO3(aq) + 2 KOH(aq) = 2 H2O(l) + K2SO3(aq)
C11H12O3 + O2 = CO2 + H2O =>
2 C11H12O3 + 25 O2 = 22 CO2 + 12 H2O
C2H2 + Br2 = C2H2Br2 =>
C2H2 + Br2 = C2H2Br2
Pb + Hg2Cl2 = PbCl2 + Hg =>
Pb + Hg2Cl2 = PbCl2 + 2 Hg
CuSO4(aq) = CuO + SO2 + O2 =>
2 CuSO4(aq) = 2 CuO + 2 SO2 + O2
Ca + H2O = Ca(OH)2 + H2 =>
Ca + 2 H2O = Ca(OH)2 + H2
RbOH + Zn(OH)2 = Rb2ZnO2 + H2O =>
2 RbOH + Zn(OH)2 = Rb2ZnO2 + 2 H2O
H3BO3 = H4B6O11 + H2O =>
6 H3BO3 = H4B6O11 + 7 H2O
(C6H12O5)5 + O2 = CO2 + H2O =>
2(C6H12O5)5 + 65 O2 = 60 CO2 + 60 H2O
(NH4)2SO4(aq) + K2CO3(aq) = (NH4)2CO3(aq) + K2SO4(aq) =>
(NH4)2SO4(aq) + K2CO3(aq) = (NH4)2CO3(aq) + K2SO4(aq)
Mg2(SO4)2 + KF = K2SO4 + MgF2 =>
Mg2(SO4)2 + 4 KF = 2 K2SO4 + 2 MgF2
NH4NO3 + CaI2 = NH4I + Ca(NO3)2 =>
2 NH4NO3 + CaI2 = 2 NH4I + Ca(NO3)2
LiOH + P2O5 = Li2O + P(OH)5 =>
10 LiOH + P2O5 = 5 Li2O + 2 P(OH)5
KBrO3 = KBr + O2 =>
2 KBrO3 = 2 KBr + 3 O2
NaVO3 + SO2 + H2SO4 = V2(SO4)3 + Na2SO4 + H2O =>
2 NaVO3 + 2 SO2 + 2 H2SO4 = V2(SO4)3 + Na2SO4 + 2 H2O
H2SO3(aq) + KOH(aq) = H2O(l) + K2SO3(aq) =>
H2SO3(aq) + 2 KOH(aq) = 2 H2O(l) + K2SO3(aq)
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