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Ba(OH)2 + H2SO4 = BaSO4 + 2 H2O
NaBH4 + CH3OH = NaB(OCH3)4 + H2 =>
NaBH4 + 4 CH3OH = NaB(OCH3)4 + 4 H2
FeCl3 + K4[Fe(Cn)6] = Fe4[Fe(Cn)6]3 + KCl =>
4 FeCl3 + 3 K4[Fe(Cn)6] = Fe4[Fe(Cn)6]3 + 12 KCl
FeI3 = Fe + I2 =>
2 FeI3 = 2 Fe + 3 I2
H2S + SO2 = S + H2O =>
2 H2S + SO2 = 3 S + 2 H2O
FeS2 + O2 = Fe2O3 + SO2 =>
4 FeS2 + 11 O2 = 2 Fe2O3 + 8 SO2
Ai + CuO = Ai2O3 + Cu =>
2 Ai + 3 CuO = Ai2O3 + 3 Cu
Na + H2O = NaOH + H2 =>
2 Na + 2 H2O = 2 NaOH + H2
Na2S2O3 + I2 = Na2S4O6 + NaI =>
2 Na2S2O3 + I2 = Na2S4O6 + 2 NaI
H3PO4 + HCl = PCl5 + H2O =>
H3PO4 + 5 HCl = PCl5 + 4 H2O
SO2 + O2 = SO3 =>
2 SO2 + O2 = 2 SO3
K3[Cr(OH)6] + Cl2 + KOH = KCl + K2CrO4 + H2O =>
2 K3[Cr(OH)6] + 3 Cl2 + 4 KOH = 6 KCl + 2 K2CrO4 + 8 H2O
AgNO3 + CaCl2 = AgCl + Ca(NO3)2 =>
2 AgNO3 + CaCl2 = 2 AgCl + Ca(NO3)2
FeCl3 + BaCO3 + H2O = Fe(OH)3 + BaCl2 + CO2 =>
2 FeCl3 + 3 BaCO3 + 3 H2O = 2 Fe(OH)3 + 3 BaCl2 + 3 CO2
Cu2S + HNO3 = Cu(NO3)2 + SO2 + H2O + NO =>
3 Cu2S + 20 HNO3 = 6 Cu(NO3)2 + 3 SO2 + 10 H2O + 8 NO
ZnCl + Cl = ZnCl2 =>
ZnCl + Cl = ZnCl2
Ga2(CO3)3 + Ca(OH)2 = Ga(OH)3 + CaCO3 =>
Ga2(CO3)3 + 3 Ca(OH)2 = 2 Ga(OH)3 + 3 CaCO3
Fe2(CO3)3 + Na2SO4 = Fe2(SO4)3 + Na2CO3 =>
Fe2(CO3)3 + 3 Na2SO4 = Fe2(SO4)3 + 3 Na2CO3
P2 + Ba = P2Ba =>
P2 + Ba = P2Ba
CH3COONa + FeCl3 + H2O = [Fe3(OH)2(CH3COO)6]Cl + NaCl + CH3COOH =>
8 CH3COONa + 3 FeCl3 + 2 H2O = [Fe3(OH)2(CH3COO)6]Cl + 8 NaCl + 2 CH3COOH
TiCl4 + H2O = TiO2 + HCl =>
TiCl4 + 2 H2O = TiO2 + 4 HCl
K2Cr2O7 + KCl + H2O = K2CrO4 + HCl =>
K2Cr2O7 + 2 KCl + H2O = 2 K2CrO4 + 2 HCl
Co2 + Ca(OH)2 = CaCo3 + OH =>
3 Co2 + 2 Ca(OH)2 = 2 CaCo3 + 4 OH
Zn + Pb(NO3)2 = Zn(NO3)2 + Pb =>
Zn + Pb(NO3)2 = Zn(NO3)2 + Pb
C + H2O = CH4 + CO2 =>
2 C + 2 H2O = CH4 + CO2
KAl(OH)4 + H2SO4 = K2SO4 + Al(OH)3 + H2O =>
2 KAl(OH)4 + H2SO4 = K2SO4 + 2 Al(OH)3 + 2 H2O
Mg + P4 = Mg3P2 =>
6 Mg + P4 = 2 Mg3P2
Na2S + HOH = H2S + NaOH =>
Na2S + 2 HOH = H2S + 2 NaOH
Pb(NO3)2 + AgI2 = PbI2 + Ag(NO3)2 =>
Pb(NO3)2 + AgI2 = PbI2 + Ag(NO3)2
AlBr3 + Mg = MgBr2 + Al =>
2 AlBr3 + 3 Mg = 3 MgBr2 + 2 Al
H2SO4 + C = H2O + SO2 + CO2 =>
2 H2SO4 + C = 2 H2O + 2 SO2 + CO2
Cr2(SO4)3 + Cr(OH)3 = (Cr(OH)2)2SO4 =>
Cr2(SO4)3 + 4 Cr(OH)3 = 3(Cr(OH)2)2SO4
Na + H2O = NaOH + H2 =>
2 Na + 2 H2O = 2 NaOH + H2
AgNO3 + (NH4)2CrO4 = Ag2CrO4 + NH4NO3 =>
2 AgNO3 + (NH4)2CrO4 = Ag2CrO4 + 2 NH4NO3
Cu(NO3)2(aq) + K2CrO4(aq) = CuCrO4 + KNO3 =>
Cu(NO3)2(aq) + K2CrO4(aq) = CuCrO4 + 2 KNO3
Fe + KSCN + H2O2 = FeO + KSCNH2 =>
2 Fe + KSCN + H2O2 = 2 FeO + KSCNH2
Fe(OH)3 = Fe2O3 + H2O =>
2 Fe(OH)3 = Fe2O3 + 3 H2O
RbNO3 + BeF2 = Be(NO3)2 + RbF =>
2 RbNO3 + BeF2 = Be(NO3)2 + 2 RbF
Zn(HCO3)2(s) = ZnCO3(s) + H2O + CO2 =>
Zn(HCO3)2(s) = ZnCO3(s) + H2O + CO2
Sn + HNO3 = SnO2 + NO2 + H2O =>
Sn + 4 HNO3 = SnO2 + 4 NO2 + 2 H2O
Br + NaI = NaBr + I =>
Br + NaI = NaBr + I
Fe2(SO4)3 + KOH = K2SO4 + Fe(OH)3 =>
Fe2(SO4)3 + 6 KOH = 3 K2SO4 + 2 Fe(OH)3
Mg + N2 = Mg3N2 =>
3 Mg + N2 = Mg3N2
Fe(aq) + NaCl(aq) = FeCl(s) + Na(aq) =>
Fe(aq) + NaCl(aq) = FeCl(s) + Na(aq)
H2SO4 + K2CO3 = K2SO4 + H2CO3 =>
H2SO4 + K2CO3 = K2SO4 + H2CO3
K2SO4 + BaCl2 = BaSO4 + K2Cl2 =>
K2SO4 + BaCl2 = BaSO4 + K2Cl2
NO2 + H2O = NH3 + O2 =>
4 NO2 + 6 H2O = 4 NH3 + 7 O2
HgO + Cl2 = HgCl + O2 =>
2 HgO + Cl2 = 2 HgCl + O2
CuSO4 + H2SO4 = Cu(SO4)3 + SO2 + H2O =>
CuSO4 + 4 H2SO4 = Cu(SO4)3 + 2 SO2 + 4 H2O
H2S + O2 = H2O + S =>
2 H2S + O2 = 2 H2O + 2 S
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