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2 Cu + 2 H2S + O2 = 2 CuS + 2 H2O
C3O6H6N6 = CO + N2 + H2O =>
C3O6H6N6 = 3 CO + 3 N2 + 3 H2O
CH3COOH + C2H5Cl = CH3COOC2H5 + HCl =>
CH3COOH + C2H5Cl = CH3COOC2H5 + HCl
C3H8 + O2 = CO2 + H2O =>
C3H8 + 5 O2 = 3 CO2 + 4 H2O
KI + HCl + Na3AsO4 = I2 + KCl + Na3AsO3 + H2O =>
2 KI + 2 HCl + Na3AsO4 = I2 + 2 KCl + Na3AsO3 + H2O
K2Cr2O7 + H2O = CrO4{-2} + K{+} + H3O{+} =>
K2Cr2O7 + 3 H2O = 2 CrO4{-2} + 2 K{+} + 2 H3O{+}
Fe7 + Cl3 = FeCl5 =>
3 Fe7 + 35 Cl3 = 21 FeCl5
Ca + C + H2O = Ca(OH)2 + C2H2 =>
Ca + 2 C + 2 H2O = Ca(OH)2 + C2H2
Cr + AlCl3 = CrCl3 + Al =>
Cr + AlCl3 = CrCl3 + Al
Ba(H2O)8(OH)2 + NH4SCN = Ba(SCN)2 + H2O + NH3 =>
Ba(H2O)8(OH)2 + 2 NH4SCN = Ba(SCN)2 + 10 H2O + 2 NH3
C6H24 + O2 = C + H24O2 =>
C6H24 + O2 = 6 C + H24O2
C15H24O6N4 + O2 = CO2 + H2O + N2 =>
C15H24O6N4 + 18 O2 = 15 CO2 + 12 H2O + 2 N2
NiCl2 + CuSO4 = CuCl + Ni(SO4)2 =>
NiCl2 + 2 CuSO4 = 2 CuCl + Ni(SO4)2
Pb3O4 + HCOOH = Pb(H2COO) + PbO2 =>
Pb3O4 + HCOOH = Pb(H2COO) + 2 PbO2
HCl + NaO = NaOH + Cl2 =>
2 HCl + 2 NaO = 2 NaOH + Cl2
Na2CrO4 + NaNO2 + H2SO4 = NaNO3 + Cr2(SO4)3 + Na2SO4 + H2O =>
2 Na2CrO4 + 3 NaNO2 + 5 H2SO4 = 3 NaNO3 + Cr2(SO4)3 + 2 Na2SO4 + 5 H2O
Mo + NaNO3 + NaOH = Na2MoO4 + NaNO2 + H2O =>
Mo + 3 NaNO3 + 2 NaOH = Na2MoO4 + 3 NaNO2 + H2O
KMnO4 + MnSO4 + H2O = MnO2 + H2SO4 + K2MnO4 =>
2 KMnO4 + 2 MnSO4 + 2 H2O = 3 MnO2 + 2 H2SO4 + K2MnO4
Al + KI = Al2I3 + K =>
2 Al + 3 KI = Al2I3 + 3 K
C7H5N3O6 = C + H2 + N2 + O2 =>
2 C7H5N3O6 = 14 C + 5 H2 + 3 N2 + 6 O2
Cu(ClO4)2*6H2O + Zn = Zn(ClO4) + Cu + H2O =>
Cu(ClO4)2*6H2O + 2 Zn = 2 Zn(ClO4) + Cu + 6 H2O
Fe + NaSO4 = Fe2(SO4)3 + Na =>
2 Fe + 3 NaSO4 = Fe2(SO4)3 + 3 Na
NaI + CH3COOH + MnO2 = I2 + H2O + Mn(CH3COO)2 + Na(CH3COO) =>
2 NaI + 4 CH3COOH + MnO2 = I2 + 2 H2O + Mn(CH3COO)2 + 2 Na(CH3COO)
I3 + SO2 = S3I2 + O2 =>
2 I3 + 9 SO2 = 3 S3I2 + 9 O2
Ti + F2 = Ti3F2 =>
3 Ti + F2 = Ti3F2
Mg(NO3)2 + H2 + O + S = MgSO4 + HNO3 =>
Mg(NO3)2 + H2 + 4 O + S = MgSO4 + 2 HNO3
(ii)CaCO3 + HCl = CaCl2 + H2O + CO2 =>
(ii)CaCO3 + 2 HCl = CaCl2 + H2O + CO2
MnCl + SO = MnO + SCl =>
MnCl + SO = MnO + SCl
MgCO3 + HI = HCO3 + MgI =>
MgCO3 + HI = HCO3 + MgI
Mg2O3 + O2 = MgO4 =>
2 Mg2O3 + 5 O2 = 4 MgO4
NiCl2 + H2O = NiCl2*H2O =>
NiCl2 + H2O = NiCl2*H2O
Zr(OH)4 + H2SO4 = Zr(SO4)2 + H2O =>
Zr(OH)4 + 2 H2SO4 = Zr(SO4)2 + 4 H2O
Mg + Zn(NO3)2 = Zn + (NO3)2Mg =>
Mg + Zn(NO3)2 = Zn + (NO3)2Mg
H2SO4 + NaHCO3 = H2HCO3 + NaSO4 =>
H2SO4 + NaHCO3 = H2HCO3 + NaSO4
Fe2O3 + ZnO = ZnO*Fe2O3 =>
Fe2O3 + ZnO = ZnO*Fe2O3
KMnO4 + NaOH + H2O2 = NaKO2 + MnO3 + H2O =>
2 KMnO4 + 2 NaOH + H2O2 = 2 NaKO2 + 2 MnO3 + 2 H2O
CaOCl2 + Hg2Cl2 + HCl = HgCl2 + CaCl2 + H2O =>
CaOCl2 + Hg2Cl2 + 2 HCl = 2 HgCl2 + CaCl2 + H2O
Na2CO3 + HCl = CO2 + H2O + NaCl =>
Na2CO3 + 2 HCl = CO2 + H2O + 2 NaCl
CsAu + H2O = CsOH + Au + H2 =>
2 CsAu + 2 H2O = 2 CsOH + 2 Au + H2
Mg + F2 = MgF2 =>
Mg + F2 = MgF2
O2 + SB2S3 = SB2O3 + SO2 =>
9 O2 + 2 SB2S3 = 2 SB2O3 + 6 SO2
H3(CH2)5CH3 + O2 = CO2 + H2O =>
H3(CH2)5CH3 + 10 O2 = 6 CO2 + 8 H2O
K2 + B = KB =>
K2 + 2 B = 2 KB
Al3(s) + HCl(aq) = AlCl3(aq) + H2(l) =>
2 Al3(s) + 18 HCl(aq) = 6 AlCl3(aq) + 9 H2(l)
SOCl2(g) = SO(g) + Cl2(g) =>
SOCl2(g) = SO(g) + Cl2(g)
Li2CO3 + NH4H2PO4 = Li2PO4 + CO2 + NH4 + H2O =>
Li2CO3 + NH4H2PO4 = Li2PO4 + CO2 + NH4 + H2O
O2 + C3H7N = CO2 + N2O + H2O =>
10 O2 + 2 C3H7N = 6 CO2 + N2O + 7 H2O
Pb(NO3)2 + LiF = PbF2 + Li(NO3) =>
Pb(NO3)2 + 2 LiF = PbF2 + 2 Li(NO3)
C8H22O2 + O2 = H2O + CO2 =>
2 C8H22O2 + 25 O2 = 22 H2O + 16 CO2
Hg + H2SO4 = HgSO4 + H2O + SO2 =>
Hg + 2 H2SO4 = HgSO4 + 2 H2O + SO2
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