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4 FeS2 + 11 O2 = 2 Fe2O3 + 8 SO2
Mg + HCl = MgCl2 + H2 =>
Mg + 2 HCl = MgCl2 + H2
CH3OH + O2 = CO2 + H2O =>
2 CH3OH + 3 O2 = 2 CO2 + 4 H2O
Fe2O3 + HCl = FeCl3 + H2O =>
Fe2O3 + 6 HCl = 2 FeCl3 + 3 H2O
CO2 + S8 = CS2 + SO2 =>
8 CO2 + 3 S8 = 8 CS2 + 8 SO2
C + SO2 = CS2 + CO =>
5 C + 2 SO2 = CS2 + 4 CO
H2 + O2 = H2O =>
2 H2 + O2 = 2 H2O
Fe + HCl = FeCl2 + H2 =>
Fe + 2 HCl = FeCl2 + H2
KI + KIO3 + H2SO4 = I2 + K2SO4 + H2O =>
5 KI + KIO3 + 3 H2SO4 = 3 I2 + 3 K2SO4 + 3 H2O
Cl2 + KNO3 + H2O = KClO3 + KCl + HNO3 =>
3 Cl2 + 6 KNO3 + 3 H2O = KClO3 + 5 KCl + 6 HNO3
CH3COH + Na2Cr2O7 + H2SO4 = CH3COOH + Na2SO4 + Cr2(SO4) + H2O =>
5 CH3COH + Na2Cr2O7 + 2 H2SO4 = 5 CH3COOH + Na2SO4 + Cr2(SO4) + 2 H2O
Al + H2O = Al2O3 + H =>
2 Al + 3 H2O = Al2O3 + 6 H
As2O3(s) + Ca(OH)2(aq) + O2 = Ca3(AsO4)2(s) + H2O(l) =>
As2O3(s) + 3 Ca(OH)2(aq) + O2 = Ca3(AsO4)2(s) + 3 H2O(l)
Al + NiBr2 = AlBr3 + Ni =>
2 Al + 3 NiBr2 = 2 AlBr3 + 3 Ni
NaBr + Cl2 = NaCl + Br2 =>
2 NaBr + Cl2 = 2 NaCl + Br2
P + O = P2O5 =>
2 P + 5 O = P2O5
P + O2 = P2O5 =>
4 P + 5 O2 = 2 P2O5
Al + O2 = Al2O3 =>
4 Al + 3 O2 = 2 Al2O3
P2O5 + H2O = H3PO4 =>
P2O5 + 3 H2O = 2 H3PO4
Fe + Cl2 = FeCl3 =>
2 Fe + 3 Cl2 = 2 FeCl3
CaCl2 + F2 = CaF2 + Cl2 =>
CaCl2 + F2 = CaF2 + Cl2
Al + H2O = Al2O3 + H =>
2 Al + 3 H2O = Al2O3 + 6 H
Fe + Hg(NO3)2 = Hg + Fe(NO3)2 =>
Fe + Hg(NO3)2 = Hg + Fe(NO3)2
CaOCl2 + CO2 + H2O = Ca(HCO3)2 + CaCl2 + HClO =>
2 CaOCl2 + 2 CO2 + 2 H2O = Ca(HCO3)2 + CaCl2 + 2 HClO
Al2O3 + H2SO4 = Al2(SO4)3 + H2O =>
Al2O3 + 3 H2SO4 = Al2(SO4)3 + 3 H2O
MgO + HCl = MgCl2 + H2O =>
MgO + 2 HCl = MgCl2 + H2O
NH3 + O2 = NO + H2O =>
4 NH3 + 5 O2 = 4 NO + 6 H2O
S + O2 = SO3 =>
2 S + 3 O2 = 2 SO3
NH3(g) + N2O(g) = N2(g) + H2O(g) =>
2 NH3(g) + 3 N2O(g) = 4 N2(g) + 3 H2O(g)
Ag + HNO3 = H2 + AgNO3 =>
2 Ag + 2 HNO3 = H2 + 2 AgNO3
Fe + I2 = FeI3 =>
2 Fe + 3 I2 = 2 FeI3
Ca3(PO4)2 + C + SiO2 = CaSiO3 + P + CO =>
Ca3(PO4)2 + 5 C + 3 SiO2 = 3 CaSiO3 + 2 P + 5 CO
AgNO3 + KCl = AgCl + KNO3 =>
AgNO3 + KCl = AgCl + KNO3
Ba(NO3)2 + H2SO4 = BaSO4 + HNO3 =>
Ba(NO3)2 + H2SO4 = BaSO4 + 2 HNO3
FeS2 + O2 = Fe2O3 + SO2 =>
4 FeS2 + 11 O2 = 2 Fe2O3 + 8 SO2
Mg(OH)2 + N2O5 = Mg(NO3)2 + H2O =>
Mg(OH)2 + N2O5 = Mg(NO3)2 + H2O
Na3PO4 + H2SO4 = NaH2PO4 + Na2SO4 =>
Na3PO4 + H2SO4 = NaH2PO4 + Na2SO4
N2 + H2 = NH3 =>
N2 + 3 H2 = 2 NH3
HI + HIO3 = I2 + H2O =>
5 HI + HIO3 = 3 I2 + 3 H2O
NH3 + O2 = NO + H2O =>
4 NH3 + 5 O2 = 4 NO + 6 H2O
CaCO3 = CaO + CO2 =>
CaCO3 = CaO + CO2
SnCl2*2H2O + Na2S = SnS + H2O + NaCl =>
SnCl2*2H2O + Na2S = SnS + 2 H2O + 2 NaCl
SnCl4*5H2O + Na2S = SnS2 + H2O + NaCl =>
SnCl4*5H2O + 2 Na2S = SnS2 + 5 H2O + 4 NaCl
H2 + I2 = HI =>
H2 + I2 = 2 HI
Cu(NO3)2 + Ag = Ag(NO3)2 + Cu =>
Cu(NO3)2 + Ag = Ag(NO3)2 + Cu
NH3 + Cl2 = N2H4 + NH4Cl =>
4 NH3 + Cl2 = N2H4 + 2 NH4Cl
(NH4)2(PtCl6) = Pt + NH4Cl + N2 + HCl =>
3(NH4)2(PtCl6) = 3 Pt + 2 NH4Cl + 2 N2 + 16 HCl
(NH4)2SO4 + Ba(NO3)2 = BaSO4 + NH4NO3 =>
(NH4)2SO4 + Ba(NO3)2 = BaSO4 + 2 NH4NO3
C3H7OH + MnO4{-} + H{+} = C2H5COOH + Mn{2+} + H20 =>
80 C3H7OH + 20 MnO4{-} + 60 H{+} = 80 C2H5COOH + 20 Mn{2+} + 11 H20
SnCl4*5H2O + Na2S = SnS2 + H2O + NaCl =>
SnCl4*5H2O + 2 Na2S = SnS2 + 5 H2O + 4 NaCl
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