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4 FeS2 + 11 O2 = 2 Fe2O3 + 8 SO2
Fe3 + Pb(NO3)2 = Fe(NO3)3 + Pb =>
2 Fe3 + 9 Pb(NO3)2 = 6 Fe(NO3)3 + 9 Pb
HSO3C6H4C12H25 + NaOH = H2O + NaSO3C6H4C12H25 =>
HSO3C6H4C12H25 + NaOH = H2O + NaSO3C6H4C12H25
CH3COOC2H5 + H2 = C2H5OH =>
CH3COOC2H5 + 2 H2 = 2 C2H5OH
MgNH4PO4*6H2O = NH3 + H2O + Mg2P2O7 =>
2 MgNH4PO4*6H2O = 2 NH3 + 13 H2O + Mg2P2O7
Fe2O3 + CO = Fe + CO2 =>
Fe2O3 + 3 CO = 2 Fe + 3 CO2
H2SO4 + Pb(OH)4 = Pb(SO4)2 + H2O =>
2 H2SO4 + Pb(OH)4 = Pb(SO4)2 + 4 H2O
SICl4 = SI + Cl2 =>
SICl4 = SI + 2 Cl2
Na2CO3 + H2SO4 = Na2SO4 + CO2 + H2O =>
Na2CO3 + H2SO4 = Na2SO4 + CO2 + H2O
Zn + Sn{2+} = Zn{2+} + Sn =>
Zn + Sn{2+} = Zn{2+} + Sn
NaCl + CaCl + Li(IO3) = Ca(IO3)2 + Na + LiCl =>
NaCl + CaCl + 2 Li(IO3) = Ca(IO3)2 + Na + 2 LiCl
Al2(SO4)3 + Pb(NO3)2 = Al(NO3)3 + Pb(SO4) =>
Al2(SO4)3 + 3 Pb(NO3)2 = 2 Al(NO3)3 + 3 Pb(SO4)
Fe + O2 = Fe2O3 =>
4 Fe + 3 O2 = 2 Fe2O3
CH3CH2OH + K2Cr2O7 + H2SO4 = CH3COOH + K2SO4 + Cr2(SO4)3 + H2O =>
3 CH3CH2OH + 2 K2Cr2O7 + 8 H2SO4 = 3 CH3COOH + 2 K2SO4 + 2 Cr2(SO4)3 + 11 H2O
AgNO3 + K2CrO4 = Ag2CrO4 + KNO3 =>
2 AgNO3 + K2CrO4 = Ag2CrO4 + 2 KNO3
zinc + hydrochloricacid = zincchloride + hydrogen =>
Zn + 2 HCl = ZnCl2 + H2
Cl2(aq) + KI(aq) = KCl(aq) + I2(s) =>
Cl2(aq) + 2 KI(aq) = 2 KCl(aq) + I2(s)
NH3 + O2 = NO + H2O =>
4 NH3 + 5 O2 = 4 NO + 6 H2O
CaCO3 + H2SO4 = CaCO3SO4 + H2 =>
CaCO3 + H2SO4 = CaCO3SO4 + H2
NH4OH + HNO3 = NH4NO3 + H2O =>
NH4OH + HNO3 = NH4NO3 + H2O
Cr(OH)3 + IO{-}3 + OH{-} = CrO4{-}2 + I{-} + H2O =>
Cr(OH)3 + 2 IO{-}3 + OH{-} = CrO4{-}2 + 2 I{-} + 2 H2O
H3PO4 + KOH = K(PO4) + H3(OH) =>
H3PO4 + KOH = K(PO4) + H3(OH)
C6H10O5 + H2O = H2 + CO2 =>
C6H10O5 + 7 H2O = 12 H2 + 6 CO2
NaClO3 + Cr(OH)3 + NaOH = NaCl + NaCrO4 + H2O =>
2 NaClO3 + 3 Cr(OH)3 + 3 NaOH = 2 NaCl + 3 NaCrO4 + 6 H2O
NaHCO3(aq) + H3C6H5O7(aq) = H2O(l) + CO2(g) + Na3C6H5O7 =>
3 NaHCO3(aq) + H3C6H5O7(aq) = 3 H2O(l) + 3 CO2(g) + Na3C6H5O7
P4O10 + H2O = H3PO4 =>
P4O10 + 6 H2O = 4 H3PO4
Sb + Co = SbCo3 =>
Sb + 3 Co = SbCo3
NaCl + MnO2 + H2SO4 = NaHSO4 + MnSO4 + Cl2 + H2O =>
2 NaCl + MnO2 + 3 H2SO4 = 2 NaHSO4 + MnSO4 + Cl2 + 2 H2O
K + H2O = KOH + H2 =>
2 K + 2 H2O = 2 KOH + H2
KBr + Ca(OH)2 = CaBr2 + KOH =>
2 KBr + Ca(OH)2 = CaBr2 + 2 KOH
C17H19NO3 + O2 = CO2 + H2O + N2O =>
2 C17H19NO3 + 41 O2 = 34 CO2 + 19 H2O + N2O
H3NO3S + NaNO3 = H3NO3 + NaNO3S =>
H3NO3S + NaNO3 = H3NO3 + NaNO3S
CH3COH + K2Cr2O7 + H2SO4 = CH3COOH + Cr2(SO4)3 + H2O + K2SO4 =>
3 CH3COH + K2Cr2O7 + 4 H2SO4 = 3 CH3COOH + Cr2(SO4)3 + 4 H2O + K2SO4
I2 + KNO2 + CCl4 = NO2 + CCl3I + KCl =>
I2 + 2 KNO2 + 2 CCl4 = 2 NO2 + 2 CCl3I + 2 KCl
CH3COH + K2Cr2O7 + H2SO4 = CH3COOH + Cr2(SO4)3 + H2O + K2SO4 =>
3 CH3COH + K2Cr2O7 + 4 H2SO4 = 3 CH3COOH + Cr2(SO4)3 + 4 H2O + K2SO4
Ba(CH3CO2)2(aq) + Li2CO3(aq) = BaCO3(s) + LiCH3CO2(aq) =>
Ba(CH3CO2)2(aq) + Li2CO3(aq) = BaCO3(s) + 2 LiCH3CO2(aq)
CH3CH(CH3)COOCH2CH2CH3 + NaOH = C5H9O2 + Na + H3O =>
10 CH3CH(CH3)COOCH2CH2CH3 + 19 NaOH = 14 C5H9O2 + 19 Na + 11 H3O
Na2CO3 + CO2 = NaCO2 + O2 =>
2 Na2CO3 + 2 CO2 = 4 NaCO2 + O2
Pb + NO3H + BrH = PbBr2 + NO + H2O =>
3 Pb + 2 NO3H + 6 BrH = 3 PbBr2 + 2 NO + 4 H2O
Cd + Zn(NO3)2 = Zn + Cd(NO3)2 =>
Cd + Zn(NO3)2 = Zn + Cd(NO3)2
Bi2O3 + ClO{-} + OH{-} = BiO3{-} + Cl{-} + H2O =>
Bi2O3 + 2 ClO{-} + 2 OH{-} = 2 BiO3{-} + 2 Cl{-} + H2O
AgNO3 + C = AgNO3C =>
AgNO3 + C = AgNO3C
FeO + O2 = Fe3O4 =>
6 FeO + O2 = 2 Fe3O4
K + P = K2P =>
2 K + P = K2P
N2O2 + H2 = N2O + H2O =>
N2O2 + H2 = N2O + H2O
(PbOH)2CO3 + H2S = PbS + CO2 + H2O =>
(PbOH)2CO3 + 2 H2S = 2 PbS + CO2 + 3 H2O
Na2CO3 + H2SO4 = Na2SO4 + H2CO3 =>
Na2CO3 + H2SO4 = Na2SO4 + H2CO3
Zn(s) + N2 = ZnN2 =>
Zn(s) + N2 = ZnN2
Si4H10 + O2 = SiO2 + H2O =>
2 Si4H10 + 13 O2 = 8 SiO2 + 10 H2O
CaO2 + H2O = Ca(OH)2 + O2 =>
2 CaO2 + 2 H2O = 2 Ca(OH)2 + O2
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