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4 HI + SO2 = 2 I2 + S + 2 H2O
CaCO3 = CaO + CO2 =>
CaCO3 = CaO + CO2
KMnO4 + Fe + HCl = FeCl3 + MnCl2 + KCl + H2O =>
3 KMnO4 + 5 Fe + 24 HCl = 5 FeCl3 + 3 MnCl2 + 3 KCl + 12 H2O
S8* + O2 = SO2 =>
S8* + 8 O2 = 8 SO2
Ca + HCIO3 = Ca(CIO3)2 + H2 =>
Ca + 2 HCIO3 = Ca(CIO3)2 + H2
NH4NO3 = NH3 + NO2 + H2O =>
7 NH4NO3 = 6 NH3 + 8 NO2 + 5 H2O
NHO3(l) = NO2(g) + O2(g) + H2O(l) =>
4 NHO3(l) = 4 NO2(g) + O2(g) + 2 H2O(l)
H3BO3 = H4B6O11 + H2O =>
6 H3BO3 = H4B6O11 + 7 H2O
BaOH + HF = BaF + H2O =>
BaOH + HF = BaF + H2O
PbS + H2O2 = PbO2 + H2S =>
PbS + H2O2 = PbO2 + H2S
CaCO3(aq) + HCl(aq) = H2OCaCl2 + CO2 =>
CaCO3(aq) + 2 HCl(aq) = H2OCaCl2 + CO2
C6H5COOH + O2 = CO2 + H2O =>
2 C6H5COOH + 15 O2 = 14 CO2 + 6 H2O
Sn(NO3)2 + Ca(OH)2 = Sn(OH)2 + Ca(NO3)2 =>
Sn(NO3)2 + Ca(OH)2 = Sn(OH)2 + Ca(NO3)2
NO(g) + NH3(g) = N2(g) + H2O(l) =>
6 NO(g) + 4 NH3(g) = 5 N2(g) + 6 H2O(l)
Fe2S3(s) + O2(g) = FeO(s) + SO2(g) =>
Fe2S3(s) + 4 O2(g) = 2 FeO(s) + 3 SO2(g)
HL + KMnO4 + H2SO4 = L2 + MnSO4 + K2SO4 + H2O =>
10 HL + 2 KMnO4 + 3 H2SO4 = 5 L2 + 2 MnSO4 + K2SO4 + 8 H2O
Ni + CoCl2 = NiCl2 + Co =>
Ni + CoCl2 = NiCl2 + Co
Na + SO3 = Na(SO3)2 =>
Na + 2 SO3 = Na(SO3)2
CH3OH + C4H9Cl = C4H10O + CH3Cl =>
CH3OH + C4H9Cl = C4H10O + CH3Cl
Na2CrO4 + Na2SO3 + H2O = Cr2(SO4)3 + NaOH =>
2 Na2CrO4 + 3 Na2SO3 + 5 H2O = Cr2(SO4)3 + 10 NaOH
SOCl2 + Ba(OH)2 = H2SO3 + BaCl2 =>
SOCl2 + Ba(OH)2 = H2SO3 + BaCl2
Zn + HCl = ZnCl2 + H2 =>
Zn + 2 HCl = ZnCl2 + H2
[Ag(NH3)2]{+} + HCOO{-} + OH{-} = Ag + CO2 + NH3 + H2O =>
2[Ag(NH3)2]{+} + HCOO{-} + OH{-} = 2 Ag + CO2 + 4 NH3 + H2O
H2SO4 + KOH = K2SO4 + H2O =>
H2SO4 + 2 KOH = K2SO4 + 2 H2O
Fe + O2 = Fe2O3 =>
4 Fe + 3 O2 = 2 Fe2O3
H2SO4(aq) + Na2CO3(aq) = Na2SO4 + CO2 + H2O =>
H2SO4(aq) + Na2CO3(aq) = Na2SO4 + CO2 + H2O
F2 + LiBr = Br + FLi =>
F2 + 2 LiBr = 2 Br + 2 FLi
Mg + H2SO4(k) = MgSO4 + H2S + H2O =>
4 Mg + 5 H2SO4(k) = 4 MgSO4 + H2S + 4 H2O
SO4 = S + O2 =>
SO4 = S + 2 O2
Ba2B6O11 + HCl + H2O = BaCl2 + H3BO3 =>
Ba2B6O11 + 4 HCl + 7 H2O = 2 BaCl2 + 6 H3BO3
CaSO4H2S = CaS + H2SO4 =>
CaSO4H2S = CaS + H2SO4
Cu + HNO3 = Cu(NO3)2 + N2N3 + H2O =>
25 Cu + 60 HNO3 = 25 Cu(NO3)2 + 2 N2N3 + 30 H2O
CH3COOH + NaOH = NaCH3COO + H2O =>
CH3COOH + NaOH = NaCH3COO + H2O
TiO2 + CO = TiC + CO2 =>
TiO2 + 4 CO = TiC + 3 CO2
NaCl(aq) + AgNO3 = AgCl + NaNO3 =>
NaCl(aq) + AgNO3 = AgCl + NaNO3
HC1 + Na2CO3 = NaC1 + CO2 + H2O =>
2 HC1 + Na2CO3 = 2 NaC1 + CO2 + H2O
Ca(NO3)2 + Na2CO3 = Na2NO3 + Ca(CO3)2 =>
Ca(NO3)2 + 2 Na2CO3 = 2 Na2NO3 + Ca(CO3)2
Al + O2 = Al2O3 =>
4 Al + 3 O2 = 2 Al2O3
Cr2O7{-} + Sn{2+} + H{+} = Cr{+3} + Sn{+4} + H2O =>
2 Cr2O7{-} + 7 Sn{2+} + 28 H{+} = 4 Cr{+3} + 7 Sn{+4} + 14 H2O
C8H11NO2 + O2 = CO2 + H2O + NO2 =>
4 C8H11NO2 + 43 O2 = 32 CO2 + 22 H2O + 4 NO2
MnO4{-} + Mn{2+} + OH{-} = MnO4{2-} + H2O =>
4 MnO4{-} + Mn{2+} + 8 OH{-} = 5 MnO4{2-} + 4 H2O
Cu + H2O = CuO + H2 =>
Cu + H2O = CuO + H2
Bi2S3 + O2 = Bi1O3 + SO2 =>
Bi2S3 + 6 O2 = 2 Bi1O3 + 3 SO2
Cs2O + H2O = CsOH =>
Cs2O + H2O = 2 CsOH
NaNO3 + H2SO4 + FeSO4 = NO2 + Fe2(SO4)3 + H2O + Na2SO4 =>
2 NaNO3 + 2 H2SO4 + 2 FeSO4 = 2 NO2 + Fe2(SO4)3 + 2 H2O + Na2SO4
Cl2 + NaBr = NaCl + Br2 =>
Cl2 + 2 NaBr = 2 NaCl + Br2
KOH + NH3 = NOH + KH3 =>
KOH + NH3 = NOH + KH3
SO2(g) + HF(e) = SF4(g) + H2O(e) =>
SO2(g) + 4 HF(e) = SF4(g) + 2 H2O(e)
CH3CH2CH2OH + HCl = CH3CH2Cl + H2O =>
2 CH3CH2CH2OH + 3 HCl = 3 CH3CH2Cl + 2 H2O
ArH3 + O2 = Ar2O3 + H2O =>
2 ArH3 + 3 O2 = Ar2O3 + 3 H2O
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