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4 P + 5 O2 = 2 P2O5
PbS + O2 = PbO + SO2 =>
2 PbS + 3 O2 = 2 PbO + 2 SO2
CaO + MnI4 = MnO2 + CaI2 =>
2 CaO + MnI4 = MnO2 + 2 CaI2
Fe2(SO4)3 + KOH = K2SO4 + Fe(OH)3 =>
Fe2(SO4)3 + 6 KOH = 3 K2SO4 + 2 Fe(OH)3
HCl(aq) + K2SO3(s) = H2O(l) + KCl(aq) + SO2(g) =>
2 HCl(aq) + K2SO3(s) = H2O(l) + 2 KCl(aq) + SO2(g)
NaI + AgNO3 = IAg + NaNO3 =>
NaI + AgNO3 = IAg + NaNO3
Al + CH3COOH = Al(CH3COO) + H2 =>
2 Al + 2 CH3COOH = 2 Al(CH3COO) + H2
NaOH + C7H15COOH = C7H15COONa + H2O =>
NaOH + C7H15COOH = C7H15COONa + H2O
Mg + P4 = Mg3P2 =>
6 Mg + P4 = 2 Mg3P2
C57H110O6 + O2 = CO2 + H2O =>
2 C57H110O6 + 163 O2 = 114 CO2 + 110 H2O
K2Cr2O7 + H2SO4 = CrO3 + K2SO4 + H2O =>
K2Cr2O7 + H2SO4 = 2 CrO3 + K2SO4 + H2O
H2 + Cl2 = HCl =>
H2 + Cl2 = 2 HCl
CuSO4 + NaCl + Al = AlCl3 + Cu + Na2SO4 =>
3 CuSO4 + 6 NaCl + 2 Al = 2 AlCl3 + 3 Cu + 3 Na2SO4
H2 + Al + O2 = Al(OH3) =>
3 H2 + 2 Al + O2 = 2 Al(OH3)
CCl4 + Cu(SO4) = C(SO4)2 + CuCl2 =>
CCl4 + 2 Cu(SO4) = C(SO4)2 + 2 CuCl2
HClO + NiH2 = NiCl2 + H2O =>
2 HClO + NiH2 = NiCl2 + 2 H2O
Li + HOH = LiHOH =>
Li + HOH = LiHOH
K2SO4 + Ai = K + Ai2(SO4)3 =>
3 K2SO4 + 2 Ai = 6 K + Ai2(SO4)3
CH3(CH4)2CH3 + O2 = H2O + CO2 =>
2 CH3(CH4)2CH3 + 15 O2 = 14 H2O + 8 CO2
KMnO4 + KJ + H2SO4 = MnSO4 + J2 + K2SO4 + KOH =>
2 KMnO4 + 10 KJ + 4 H2SO4 = 2 MnSO4 + 5 J2 + 2 K2SO4 + 8 KOH
Zn + HCl = ZnCl2 + H2 =>
Zn + 2 HCl = ZnCl2 + H2
SbCl7 + KI = SbCl4 + KCl + I2 =>
2 SbCl7 + 6 KI = 2 SbCl4 + 6 KCl + 3 I2
Pb(NO3)2 + K2CrO4(aq) = PbCrO4(s) + KNO3 =>
Pb(NO3)2 + K2CrO4(aq) = PbCrO4(s) + 2 KNO3
HPO4 + HCO3 = H2PO4 + CO3 =>
HPO4 + HCO3 = H2PO4 + CO3
AlBr3 + (NH4)2CrO4 = Al2(CrO4)3 + NH4Br =>
2 AlBr3 + 3(NH4)2CrO4 = Al2(CrO4)3 + 6 NH4Br
Cu + AgNO3 = Cu(NO3)2 + Ag =>
Cu + 2 AgNO3 = Cu(NO3)2 + 2 Ag
Ca(OH)2 + AlCl3 = Al(OH)3 + CaCl2 =>
3 Ca(OH)2 + 2 AlCl3 = 2 Al(OH)3 + 3 CaCl2
Fe(HCO3)3 + H2SO4 = Fe2(SO4)3 + H2O + CO2 =>
2 Fe(HCO3)3 + 3 H2SO4 = Fe2(SO4)3 + 6 H2O + 6 CO2
KMnO4 + CO(NO3) = CO(MnO4) + K(NO3) =>
KMnO4 + CO(NO3) = CO(MnO4) + K(NO3)
Fe + Cl2 = FeCl3 =>
2 Fe + 3 Cl2 = 2 FeCl3
NaOH + HCl = NaCl + H2O =>
NaOH + HCl = NaCl + H2O
C57H10O6 + O2 = CO2 + H2O =>
2 C57H10O6 + 113 O2 = 114 CO2 + 10 H2O
BCl3 + P4 + H2 = BP + HCl =>
4 BCl3 + P4 + 6 H2 = 4 BP + 12 HCl
SbCl3 + Na2S = Sb2S3 + NaCl =>
2 SbCl3 + 3 Na2S = Sb2S3 + 6 NaCl
Fe + O2 = Fe2O3 =>
4 Fe + 3 O2 = 2 Fe2O3
Pb + Na2S = PbS + Na =>
Pb + Na2S = PbS + 2 Na
KIO3 = KI + O =>
KIO3 = KI + 3 O
Na2SO4 + Ba(CH3COO)2 = Na2(CH3COO)2 + BaSO4 =>
Na2SO4 + Ba(CH3COO)2 = Na2(CH3COO)2 + BaSO4
HgNO3 + KI = HgI + K(NO3) =>
HgNO3 + KI = HgI + K(NO3)
F2 + Cr2Br = Br2 + CrF3 =>
6 F2 + 2 Cr2Br = Br2 + 4 CrF3
KOH + HCl = KCl + H2O =>
KOH + HCl = KCl + H2O
Fe + Cl2 = FeCl3 =>
2 Fe + 3 Cl2 = 2 FeCl3
Fe(OH)3 + NH3 = Fe2O3 + NH4OH =>
2 Fe(OH)3 + 3 NH3 = Fe2O3 + 3 NH4OH
NO2(g) + O2(g) + H2O(l) = HNO3(g) =>
4 NO2(g) + O2(g) + 2 H2O(l) = 4 HNO3(g)
As4S6 + O = As4O6 + SO2 =>
As4S6 + 18 O = As4O6 + 6 SO2
Cu + HNO3 = Cu(NO3)2 + H2O + NO2 =>
Cu + 4 HNO3 = Cu(NO3)2 + 2 H2O + 2 NO2
Fe + O2 = Fe2O3 =>
4 Fe + 3 O2 = 2 Fe2O3
CuSO4 + NaOH + CH3CHO = Cu2O + CH3COOH + Na2SO4 + H2O =>
2 CuSO4 + 4 NaOH + CH3CHO = Cu2O + CH3COOH + 2 Na2SO4 + 2 H2O
Cd(NO3)2 + Na2S = CdS + NaNO3 =>
Cd(NO3)2 + Na2S = CdS + 2 NaNO3
U + F2 = UF6 =>
U + 3 F2 = UF6
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