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Cu2S + 2 H2SO4 = 2 Cu0 + 3 SO2 + 2 H2O
H2SSe = H2SeS =>
H2SSe = H2SeS
NaBrO + Fe(OH)2 + H2O = HBr + Fe(OH)3 + NaOH =>
NaBrO + 2 Fe(OH)2 + 2 H2O = HBr + 2 Fe(OH)3 + NaOH
(b)BaCl2(aq) + H2SO4(aq) = BaSO4(s) + HCl(aq) =>
(b)BaCl2(aq) + H2SO4(aq) = BaSO4(s) + 2 HCl(aq)
CrCl3 + KBiO3 + KOH + H2O = K2CrO4 + Bi(OH)3 + KCl =>
2 CrCl3 + 3 KBiO3 + 7 KOH + H2O = 2 K2CrO4 + 3 Bi(OH)3 + 6 KCl
HC3H5O3 + OH = CO3 + H2O =>
HC3H5O3 + 18 OH = 3 CO3 + 12 H2O
H2C2O4 + K2Cr2O7 = KCr(C2O4)2 + H2O + CO2 =>
7 H2C2O4 + K2Cr2O7 = 2 KCr(C2O4)2 + 7 H2O + 6 CO2
HCO2H(aq) + KOH(aq) = KHCO2(aq) + H2O(l) =>
HCO2H(aq) + KOH(aq) = KHCO2(aq) + H2O(l)
CO3 + CaO = CaCO4 =>
CO3 + CaO = CaCO4
HCl + NaOH = H2ClONa =>
HCl + NaOH = H2ClONa
Cu + HNO3 = CuNO3 + HNO2 + H2O =>
2 Cu + 3 HNO3 = 2 CuNO3 + HNO2 + H2O
HC3H5O3 + OH = CO3 + H2O =>
HC3H5O3 + 18 OH = 3 CO3 + 12 H2O
Al(NO3)3 + NH3 = AlNH3 + NO3 =>
Al(NO3)3 + NH3 = AlNH3 + 3 NO3
As + O2 = As2O3 =>
4 As + 3 O2 = 2 As2O3
NH3 + O3 = NO3 + H2O =>
2 NH3 + 3 O3 = 2 NO3 + 3 H2O
NaBH4 + BF3 = NaBF4 + B2H6 =>
3 NaBH4 + 4 BF3 = 3 NaBF4 + 2 B2H6
NaHCO3 + CH3COOH = C2H3NaO2 + CO2 + H2O =>
NaHCO3 + CH3COOH = C2H3NaO2 + CO2 + H2O
H2SO4 + Ca(NO3)2 = HNO3 + Ca2(SO4)2 =>
2 H2SO4 + 2 Ca(NO3)2 = 4 HNO3 + Ca2(SO4)2
K(ClO) = KCl + O2 =>
2 K(ClO) = 2 KCl + O2
Na2CO3 + Cu(NO3)2 + H2O = CO2 + (CuOH)2CO3 + NaNO3 =>
2 Na2CO3 + 2 Cu(NO3)2 + H2O = CO2 + (CuOH)2CO3 + 4 NaNO3
FeSO4 + Ce(SO4)2 = Fe(SO4)3 + Ce2(SO4)3 =>
FeSO4 + 4 Ce(SO4)2 = Fe(SO4)3 + 2 Ce2(SO4)3
BaS + CsCl = BaCl2 + Cs2S =>
BaS + 2 CsCl = BaCl2 + Cs2S
Zn + Mg(OH)2 = MgZnO2 + H2 =>
Zn + Mg(OH)2 = MgZnO2 + H2
KCl + H2O2 = KClO3 + H2O =>
KCl + 3 H2O2 = KClO3 + 3 H2O
UO2SO4 + Na2CO3 = Na6[UO2(CO3)4] + Na2SO4 =>
UO2SO4 + 4 Na2CO3 = Na6[UO2(CO3)4] + Na2SO4
C12H7 + O2(g) = CO2(g) + H2O(g) =>
4 C12H7 + 55 O2(g) = 48 CO2(g) + 14 H2O(g)
Fe22O3 + Al = Fe + Al2O3 =>
Fe22O3 + 2 Al = 22 Fe + Al2O3
PbCl2 + NaCl = Na2PbCl4 =>
PbCl2 + 2 NaCl = Na2PbCl4
CuCl + HS = CuS + HCl =>
CuCl + HS = CuS + HCl
K2SO3 + Cl2 + KOH = K2SO4 + KCl + H2O =>
K2SO3 + Cl2 + 2 KOH = K2SO4 + 2 KCl + H2O
KL + KMnO4 + H2SO4 = MnSO4 + L2 + KSO4 + H2O =>
2 KL + KMnO4 + 4 H2SO4 = MnSO4 + L2 + 3 KSO4 + 4 H2O
ZnCO3 + OH = Zn(OH)2 + CO3 =>
ZnCO3 + 2 OH = Zn(OH)2 + CO3
C5H5Cl + O2 = CO2 + H2O + HCl =>
C5H5Cl + 6 O2 = 5 CO2 + 2 H2O + HCl
NH4OH + H2O2 = HNO3 + H2OOH =>
NH4OH + 7 H2O2 = HNO3 + 6 H2OOH
Cu(NO3)2 + HF = CuF2 + HNO3 =>
Cu(NO3)2 + 2 HF = CuF2 + 2 HNO3
ClCO2CCl3(g) = COCl2(g) =>
ClCO2CCl3(g) = 2 COCl2(g)
Fe2(SO4)3 + NH3 + H2O = Fe(OH0)3 + (NH4)2SO4 =>
Fe2(SO4)3 + 6 NH3 + 6 H2O = 2 Fe(OH0)3 + 3(NH4)2SO4
KNO3 + Cr2O3 = K2CrO4 + NO + NO2 =>
4 KNO3 + Cr2O3 = 2 K2CrO4 + NO + 3 NO2
K2Cr2O7 + HCl + C2H5OH = CrCl3 + KCl + CH3CHO + H2O =>
K2Cr2O7 + 8 HCl + 3 C2H5OH = 2 CrCl3 + 2 KCl + 3 CH3CHO + 7 H2O
Ce(IO3)4 + H2C2O4 = Ce(C2O4)4 + I2 + CO2 + H2O =>
Ce(IO3)4 + 12 H2C2O4 = Ce(C2O4)4 + 2 I2 + 16 CO2 + 12 H2O
Mg + H2SO4 + H2O = Mg2SO4 + H3O =>
2 Mg + H2SO4 + 2 H2O = Mg2SO4 + 2 H3O
NH3 + CuSO4 = Cu3N + HSO4 =>
NH3 + 3 CuSO4 = Cu3N + 3 HSO4
Zn + FeCl3 = Zn(Cl)2 + Fe =>
3 Zn + 2 FeCl3 = 3 Zn(Cl)2 + 2 Fe
C2H4 + Cl2 = C2H4Cl2 =>
C2H4 + Cl2 = C2H4Cl2
[KMnO4]2 + CaCl2 + Se = Ca[SeO4]2 + KCl + MnSe =>
[KMnO4]2 + CaCl2 + 4 Se = Ca[SeO4]2 + 2 KCl + 2 MnSe
SiH4 + H2O = H2SiO3 + H{+} + e =>
SiH4 + 3 H2O = H2SiO3 + 8 H{+} + 8e
MnO4{-} + Sb + H{+} = Sb2O3 + MnO2 + H2O =>
2 MnO4{-} + 2 Sb + 2 H{+} = Sb2O3 + 2 MnO2 + H2O
Ni + HNO3 = Ni(NO3)2 + NO2 + H2O =>
Ni + 4 HNO3 = Ni(NO3)2 + 2 NO2 + 2 H2O
Na2HCO4 + H2SO4 = Na2SO4 + H2HCO4 =>
Na2HCO4 + H2SO4 = Na2SO4 + H2HCO4
AgBr = Ag + Br2 =>
2 AgBr = 2 Ag + Br2
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