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2 Fe + 3 H2SO4 = Fe2(SO4)3 + 3 H2
H2 + O2 = H2O =>
2 H2 + O2 = 2 H2O
CaCO3 = CaO + CO2 =>
CaCO3 = CaO + CO2
Ba + Rb2SO4 = Rb + Ba2SO4 =>
2 Ba + Rb2SO4 = 2 Rb + Ba2SO4
PbS + CuNO3 = CuS + PbNO3 =>
PbS + CuNO3 = CuS + PbNO3
N2 + O2 = N2O =>
2 N2 + O2 = 2 N2O
Ca3P2 + NaMnO4 + HCl = MnCl2 + NaCl + Ca3(PO4)2 + H2O =>
5 Ca3P2 + 16 NaMnO4 + 48 HCl = 16 MnCl2 + 16 NaCl + 5 Ca3(PO4)2 + 24 H2O
(C6H5)2CO + C6H5MgBr + H3O{+} = (C6H5)3COH + MgBr{+} + H2O =>
(C6H5)2CO + C6H5MgBr + H3O{+} = (C6H5)3COH + MgBr{+} + H2O
CH3NH3ClH2O = CH3NH2ClH3O =>
CH3NH3ClH2O = CH3NH2ClH3O
MgOHClO3 + HCl = MgCl2O3 + H2O =>
MgOHClO3 + HCl = MgCl2O3 + H2O
Na + HNO3(k) = NaNO3 + N2O + H2O =>
8 Na + 10 HNO3(k) = 8 NaNO3 + N2O + 5 H2O
SO2 + KHCO3 = K2SO3 + CO2 + H2O =>
SO2 + 2 KHCO3 = K2SO3 + 2 CO2 + H2O
K2CO3 + BaSO3 = K2SO3 + BaCO3 =>
K2CO3 + BaSO3 = K2SO3 + BaCO3
NaOH(aq) + KCl(aq) = NaCl(aq) + KOH(aq) =>
NaOH(aq) + KCl(aq) = NaCl(aq) + KOH(aq)
CH4 + O2 = H2O + CO2 =>
CH4 + 2 O2 = 2 H2O + CO2
NH4{+} + NO3{-} = N2O + OH{-} + H{+} =>
NH4{+} + NO3{-} = N2O + 2 OH{-} + 2 H{+}
Co(NO3)2 + (NaCl) = Na2(CoCl4) + NaNO3 =>
Co(NO3)2 + 4(NaCl) = Na2(CoCl4) + 2 NaNO3
C6H6 + C3H7Br = C6H5C2H5 + HBr =>
3 C6H6 + 2 C3H7Br = 3 C6H5C2H5 + 2 HBr
KMnO4 + K2SO3 = MnO2 + K2SO4 + K =>
KMnO4 + 2 K2SO3 = MnO2 + 2 K2SO4 + K
XY3 + XZ2 = X2 + Y2Z =>
8 XY3 + 6 XZ2 = 7 X2 + 12 Y2Z
Cr{3+}(aq) + Cl{-}(aq) = Cr(s) + Cl2(g) =>
2 Cr{3+}(aq) + 6 Cl{-}(aq) = 2 Cr(s) + 3 Cl2(g)
Ag2O = Ag + O2 =>
2 Ag2O = 4 Ag + O2
C10H15NO*H2O + H3PO2 + I2 = C10H15N + HI + H3PO3 =>
C10H15NO*H2O + 2 H3PO2 + I2 = C10H15N + 2 HI + 2 H3PO3
CS2 + O2 = CO2 + SO2 =>
CS2 + 3 O2 = CO2 + 2 SO2
Sn2 + Cl2 = SnCl4 =>
Sn2 + 4 Cl2 = 2 SnCl4
Ca(NO3)2 = O2 + NO2 + CaO =>
2 Ca(NO3)2 = O2 + 4 NO2 + 2 CaO
CaCO3 + ZnO = ZnCO3 + CaO =>
CaCO3 + ZnO = ZnCO3 + CaO
Li2CO3 + V2O5 = Li3VO4 + CO2 =>
3 Li2CO3 + V2O5 = 2 Li3VO4 + 3 CO2
Mg(OH)2 + FeCl3 = MgCl2 + Fe(OH)3 =>
3 Mg(OH)2 + 2 FeCl3 = 3 MgCl2 + 2 Fe(OH)3
SO4 + NaOH = Na2SO4 + H2O2 =>
SO4 + 2 NaOH = Na2SO4 + H2O2
C4H7OH(l) + O2(limited) = C + H2O =>
2 C4H7OH(l) + 3 O2(limited) = 8 C + 8 H2O
K2Cr2O7 + NaC2O4 + H2O = Cr(OH)3 + CO2 + NaOH + KOH =>
K2Cr2O7 + 6 NaC2O4 + 7 H2O = 2 Cr(OH)3 + 12 CO2 + 6 NaOH + 2 KOH
*Cu + S = *CuS =>
*Cu + S = *CuS
(NH4)2SO4 + Ba(OH)2 = H2O + NH3 + BaSO4 =>
(NH4)2SO4 + Ba(OH)2 = 2 H2O + 2 NH3 + BaSO4
Cl + HI = I2 + HCl =>
2 Cl + 2 HI = I2 + 2 HCl
KI + Cl2 = KCl + I2 =>
2 KI + Cl2 = 2 KCl + I2
P4 + O2 = P2O5 =>
P4 + 5 O2 = 2 P2O5
CuOH2SO4 = CuSO4OH2 =>
CuOH2SO4 = CuSO4OH2
CS2 + O2 = CO2 + SO2 =>
CS2 + 3 O2 = CO2 + 2 SO2
Fe2O3 + S = Fe + SO2 =>
2 Fe2O3 + 3 S = 4 Fe + 3 SO2
P4 + O2 = P2O3 =>
P4 + 3 O2 = 2 P2O3
FeCl2 + O2 + H2O = Fe2O3 + HCl =>
4 FeCl2 + O2 + 4 H2O = 2 Fe2O3 + 8 HCl
HOCN = HCNO =>
HOCN = HCNO
CuCl2Sn = SnCl2Cu =>
CuCl2Sn = SnCl2Cu
Fe + MnBr4 = Fe2Br + Mn =>
8 Fe + MnBr4 = 4 Fe2Br + Mn
Cl2 + NaIO3 = NaClO3 + I2 =>
Cl2 + 2 NaIO3 = 2 NaClO3 + I2
KClH2C4H4O6 = KHC4H4O6HCl =>
KClH2C4H4O6 = KHC4H4O6HCl
MgCl2 + NaHCO3 = MgHCO3 + NaCl2 =>
MgCl2 + NaHCO3 = MgHCO3 + NaCl2
NaClO4 = NaCl + O =>
NaClO4 = NaCl + 4 O
CuCl2*2H2O2 + Al + HCl = Cu + AlCl3 + H3O =>
3 CuCl2*2H2O2 + 10 Al + 24 HCl = 3 Cu + 10 AlCl3 + 12 H3O
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