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Fe(OH)2 + Na2S = FeS + 2 NaOH
C2H5COOH + Na2CO3 = NaC2H5COO + H2O + CO2 =>
2 C2H5COOH + Na2CO3 = 2 NaC2H5COO + H2O + CO2
CuO = Cu + O =>
CuO = Cu + O
Fe + SO2 = FeSO3 + FeS2O3 =>
2 Fe + 3 SO2 = FeSO3 + FeS2O3
NaOH(aq) = Na{+}(aq) + OH{-}(aq) =>
NaOH(aq) = Na{+}(aq) + OH{-}(aq)
H3 + PO4 + NaOH = Na3PO4 + H2O =>
H3 + PO4 + 3 NaOH = Na3PO4 + 3 H2O
FeO2 + C = Fe + CO =>
FeO2 + 2 C = Fe + 2 CO
KI + H2O = KOH + I2 + H2 =>
2 KI + 2 H2O = 2 KOH + I2 + H2
MgCl2 + KNO3 = MgNO3 + Cl2K =>
MgCl2 + KNO3 = MgNO3 + Cl2K
KI(aq) + H2SO4(aq) = K2SO4 + HI =>
2 KI(aq) + H2SO4(aq) = K2SO4 + 2 HI
H2SeO4 + KOH = K2SeO4 + H2O =>
H2SeO4 + 2 KOH = K2SeO4 + 2 H2O
SO3 + H2 = H2S + O2 =>
2 SO3 + 2 H2 = 2 H2S + 3 O2
C3H8 + NH3 + O2 = C3H3N + H2O =>
C3H8 + NH3 + 2 O2 = C3H3N + 4 H2O
K + O2 = K2O =>
4 K + O2 = 2 K2O
Ba(OH)2 + Na = NaOH + Ba =>
Ba(OH)2 + 2 Na = 2 NaOH + Ba
H2Te = H2 + Te =>
H2Te = H2 + Te
Al4C3 + H2O = Al(OH)3 + CH4 =>
Al4C3 + 12 H2O = 4 Al(OH)3 + 3 CH4
K + HCl = KCl + H2 =>
2 K + 2 HCl = 2 KCl + H2
Mg(NO3)2 + K2CO3 = MgK2 + CO3(NO3)2 =>
Mg(NO3)2 + K2CO3 = MgK2 + CO3(NO3)2
K2O + H2S = KHS + H2O =>
K2O + 2 H2S = 2 KHS + H2O
NaClO + H2O = NaClO2H2 =>
NaClO + H2O = NaClO2H2
ZnCl2 + (NH4)2SO4 = ZnSO4 + (NH4)2Cl2 =>
ZnCl2 + (NH4)2SO4 = ZnSO4 + (NH4)2Cl2
C17H21NO4 + O2 = CO2 + H2O + N =>
4 C17H21NO4 + 81 O2 = 68 CO2 + 42 H2O + 4 N
HC2H3O2 + NaHCO3(s) = NaC2H3O2(ac) + CO2(g) + H2O =>
HC2H3O2 + NaHCO3(s) = NaC2H3O2(ac) + CO2(g) + H2O
NaOH(s) = NaOH(aq) =>
NaOH(s) = NaOH(aq)
Zn(s) + HCl(ac) = ZnCl2(ac) + H2 =>
Zn(s) + 2 HCl(ac) = ZnCl2(ac) + H2
CH3COOH + Na2CO3 = CH3COONa + H2O + CO2 =>
2 CH3COOH + Na2CO3 = 2 CH3COONa + H2O + CO2
HC3H5O3 + OH = HC3H4O3 + H2O =>
HC3H5O3 + OH = HC3H4O3 + H2O
Pb(NO3)2(aq) + NaCl = PbCl2 + Na(NO3) =>
Pb(NO3)2(aq) + 2 NaCl = PbCl2 + 2 Na(NO3)
ZnC4H6O4 + Na3PO4 = NaC2H3O2 + Zn3(PO4)2 =>
3 ZnC4H6O4 + 2 Na3PO4 = 6 NaC2H3O2 + Zn3(PO4)2
Al + FeO = Al2O3 + Fe =>
2 Al + 3 FeO = Al2O3 + 3 Fe
C2H5NO2 + KOH = C2H4KNO2 + H2O =>
C2H5NO2 + KOH = C2H4KNO2 + H2O
Bi2O3 + C2 = Bi + CO2 =>
4 Bi2O3 + 3 C2 = 8 Bi + 6 CO2
Sn + P = Sn3P2 =>
3 Sn + 2 P = Sn3P2
NH4Cl + ZnCO3 = ZnCl2 + (NH4)2CO3 =>
2 NH4Cl + ZnCO3 = ZnCl2 + (NH4)2CO3
Cu(NO3)2 + Na2Cr2O7 = CuCr2O7 + Na(NO3) =>
Cu(NO3)2 + Na2Cr2O7 = CuCr2O7 + 2 Na(NO3)
NH3 + S = H2S + N =>
2 NH3 + 3 S = 3 H2S + 2 N
CaCO3 + HCl = CaCl2 + H2CO3 =>
CaCO3 + 2 HCl = CaCl2 + H2CO3
HCl(aq) = H2(g) + Cl2(g) =>
2 HCl(aq) = H2(g) + Cl2(g)
C3H6 + KMnO4 + H2SO4 = C3H6O + K2SO4 + MnSO4 + H2O =>
5 C3H6 + 2 KMnO4 + 3 H2SO4 = 5 C3H6O + K2SO4 + 2 MnSO4 + 3 H2O
LiOH(aq) + Al(NO3)3(aq) = LiNO3 + Al(OH)3 =>
3 LiOH(aq) + Al(NO3)3(aq) = 3 LiNO3 + Al(OH)3
K + Co(NO3)2 = K(NO3)2 + Co =>
K + Co(NO3)2 = K(NO3)2 + Co
NO3 = N2 + O2 =>
2 NO3 = N2 + 3 O2
Na2C2O4 + HCl = NaCl + H2 + CO2 =>
Na2C2O4 + 2 HCl = 2 NaCl + H2 + 2 CO2
Se + H2SO4 = SeSO3 + H2O =>
Se + H2SO4 = SeSO3 + H2O
BaSO4 + CH3COOH = Ba(CH3COO)2 + H2O + SO3 =>
BaSO4 + 2 CH3COOH = Ba(CH3COO)2 + H2O + SO3
I2 + Na2SO3 + H2O = NaI + H2SO4 =>
I2 + Na2SO3 + H2O = 2 NaI + H2SO4
CuSO4 + NaOH = Cu(OH)2 + Na2SO4 =>
CuSO4 + 2 NaOH = Cu(OH)2 + Na2SO4
BaSO4 + C = BaS + CO2 =>
BaSO4 + 2 C = BaS + 2 CO2
CO2 + Al(OH)3 = H2O + Al2(CO3)3 =>
3 CO2 + 2 Al(OH)3 = 3 H2O + Al2(CO3)3
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