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4 Fe + 3 O2 = 2 Fe2O3
Li + AlCl3 = LiCl + Al =>
3 Li + AlCl3 = 3 LiCl + Al
K + AlF3 = KF + Al =>
3 K + AlF3 = 3 KF + Al
CaCO3 = CaO + CO2 =>
CaCO3 = CaO + CO2
Al2(CO3)3 + HCl = Al(Cl3) + CO2 + H2O =>
Al2(CO3)3 + 6 HCl = 2 Al(Cl3) + 3 CO2 + 3 H2O
KO2 + SO2 = K2SO4 + O2 =>
2 KO2 + SO2 = K2SO4 + O2
CH2H5OH + Na = CH2H5ONa + H2 =>
2 CH2H5OH + 2 Na = 2 CH2H5ONa + H2
CaI2 + NiSO4 = CaSO4 + NiI2 =>
CaI2 + NiSO4 = CaSO4 + NiI2
K + MgBr2 = KBr + Mg =>
2 K + MgBr2 = 2 KBr + Mg
CuO + CO2 + H2O = Cu2CO3(OH)2 =>
2 CuO + CO2 + H2O = Cu2CO3(OH)2
Fe(s) + Co(NO3)2(aq) = Co(s) + Fe(NO3)3(aq) =>
2 Fe(s) + 3 Co(NO3)2(aq) = 3 Co(s) + 2 Fe(NO3)3(aq)
NaI + Mg(ClO3)2 = MgI2 + NaClO3 =>
2 NaI + Mg(ClO3)2 = MgI2 + 2 NaClO3
KOH + HBr = H2O + BrK =>
KOH + HBr = H2O + BrK
MgCl2 + Na2CO3 = MgCO3 + NaCl =>
MgCl2 + Na2CO3 = MgCO3 + 2 NaCl
Mn2O7 + C2H5OH = Mn(OH)2 + CO2 + H2O =>
6 Mn2O7 + 5 C2H5OH = 12 Mn(OH)2 + 10 CO2 + 3 H2O
FeCn2 + KCn = K4Fe(Cn)6 =>
FeCn2 + 4 KCn = K4Fe(Cn)6
C8H10 + KMnO4 + H2SO4 = C8H6O4 + MnSO4 + K2SO4 + H2O =>
5 C8H10 + 12 KMnO4 + 18 H2SO4 = 5 C8H6O4 + 12 MnSO4 + 6 K2SO4 + 28 H2O
Na3P + CaF2 = NaF + Ca3P2 =>
2 Na3P + 3 CaF2 = 6 NaF + Ca3P2
C5H12 + Cl2 = C5H8Cl4 + H2 =>
C5H12 + 2 Cl2 = C5H8Cl4 + 2 H2
Hg2I2 + KI = K2(HgI4) + Hg =>
Hg2I2 + 2 KI = K2(HgI4) + Hg
Sn + HF = SnF2 + H2 =>
Sn + 2 HF = SnF2 + H2
H2S + H2O2 = H2SO4 + H2O =>
H2S + 4 H2O2 = H2SO4 + 4 H2O
Na + H2O = NaOH + H2 =>
2 Na + 2 H2O = 2 NaOH + H2
BF3 + Li2SO3 = B2(SO3)3 + LiF =>
2 BF3 + 3 Li2SO3 = B2(SO3)3 + 6 LiF
Ni + HCl = NiClH =>
Ni + HCl = NiClH
F2 + FeI2 = FeF2 + I2 =>
F2 + FeI2 = FeF2 + I2
Ba(NO2)2 + KMnO4 + H2O = MnO2 + KOH + Ba(NO3)2 =>
3 Ba(NO2)2 + 4 KMnO4 + 2 H2O = 4 MnO2 + 4 KOH + 3 Ba(NO3)2
OH + HOCN = H2O + OCN =>
OH + HOCN = H2O + OCN
CH3Cl + NaOH = NaCl + CH2 + H2O =>
CH3Cl + NaOH = NaCl + CH2 + H2O
SiCl4 + H2O = SiO2 + HCl =>
SiCl4 + 2 H2O = SiO2 + 4 HCl
LiNO3 + CaBr2 = Ca(NO3)2 + LiBr =>
2 LiNO3 + CaBr2 = Ca(NO3)2 + 2 LiBr
NaHCO3 = Na2CO3 + CO2 + H2O =>
2 NaHCO3 = Na2CO3 + CO2 + H2O
Fe(s) + O2(g) = Fe2O3(s)*2 =>
4 Fe(s) + 3 O2(g) = 2 Fe2O3(s)*2
K2Cr2O7 + NaNO3 = Na2Cr2O7 + KNO3 =>
K2Cr2O7 + 2 NaNO3 = Na2Cr2O7 + 2 KNO3
Zn(MnO4)2 + Al = Al(MnO4)3 + Zn =>
3 Zn(MnO4)2 + 2 Al = 2 Al(MnO4)3 + 3 Zn
KOH + SO2 = K2SO3 + H2O =>
2 KOH + SO2 = K2SO3 + H2O
Fe + AgCH3COO = Fe(CH3COO)2 + Ag =>
Fe + 2 AgCH3COO = Fe(CH3COO)2 + 2 Ag
CH + H2O = CH3CHO =>
2 CH + H2O = CH3CHO
C6H14 + O2 = CO2 + H2O =>
2 C6H14 + 19 O2 = 12 CO2 + 14 H2O
KBr + AgI = KI + AgBr =>
KBr + AgI = KI + AgBr
CH3OH + KMnO4 = HCOOK + H2O + MnO2 + KOH =>
3 CH3OH + 4 KMnO4 = 3 HCOOK + 4 H2O + 4 MnO2 + KOH
NaHSO3(s) + NaOH = Na2SO3(s) + H2O(l) =>
NaHSO3(s) + NaOH = Na2SO3(s) + H2O(l)
MgO = Mg + O2 =>
2 MgO = 2 Mg + O2
(H2O)2 = H2O = O2 =>
(H2O)2 = 2 H2O
Cu(NO3)2 + HOH = Cu(OH)NO3 + HNO3 =>
Cu(NO3)2 + HOH = Cu(OH)NO3 + HNO3
C10H22 + O2 = CO2 + H2O =>
2 C10H22 + 31 O2 = 20 CO2 + 22 H2O
NaS + AgNO3 = NaNO3 + AgS =>
NaS + AgNO3 = NaNO3 + AgS
K2CO3 + Sr(OH)2 = K2(OH)2 + SrCO3 =>
K2CO3 + Sr(OH)2 = K2(OH)2 + SrCO3
I2 + MnBr2 = MnI2 + Br2 =>
I2 + MnBr2 = MnI2 + Br2
C5H12 + Cl2 = C5H11Cl + HCl =>
C5H12 + Cl2 = C5H11Cl + HCl
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