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4 FeS2 + 11 O2 = 2 Fe2O3 + 8 SO2
HNO3 + KCl = KOH + ClNO2 =>
HNO3 + KCl = KOH + ClNO2
CaCO3 + HCl = CaCl2 + H2CO3 =>
CaCO3 + 2 HCl = CaCl2 + H2CO3
AlCl3 + NaOH = Al(OH)3 + NaCl =>
AlCl3 + 3 NaOH = Al(OH)3 + 3 NaCl
H + O2 = HO2 =>
H + O2 = HO2
C2Ag2 + HBr = C2H2 + Br2 + Ag =>
C2Ag2 + 2 HBr = C2H2 + Br2 + 2 Ag
Fe{3+} + C2O4{2-} = Fe(C2O4)2{-} =>
Fe{3+} + 2 C2O4{2-} = Fe(C2O4)2{-}
H2TeO4 + LiOH = H2O + Li + TeO4 =>
H2TeO4 + 2 LiOH = 2 H2O + 2 Li + TeO4
H2C6O5H7 + H2O = H2C6O5H8 + OH =>
H2C6O5H7 + H2O = H2C6O5H8 + OH
Na2SO3 + H2SO4 + KMnO4 = MnSO4 + K2SO4 + H2O + Na2SO4 =>
5 Na2SO3 + 3 H2SO4 + 2 KMnO4 = 2 MnSO4 + K2SO4 + 3 H2O + 5 Na2SO4
KMnO4 + HCl = KCl + MnCl2 + H2O + Cl2 =>
2 KMnO4 + 16 HCl = 2 KCl + 2 MnCl2 + 8 H2O + 5 Cl2
H2C6O5H7 + H2O = H3O + C6O5H7 =>
H2C6O5H7 + 2 H2O = 2 H3O + C6O5H7
KHCO3 + KCN = K2CO3 + HCN =>
KHCO3 + KCN = K2CO3 + HCN
Cl2H2O = HClHClO =>
Cl2H2O = HClHClO
VO + Fe2O3 = V2O5 + FeO =>
2 VO + 3 Fe2O3 = V2O5 + 6 FeO
K2Cr2O7 + K2SO3 + H2SO4 = Cr2(SO4)2 + H2O + K2SO4 =>
K2Cr2O7 + 4 K2SO3 + 3 H2SO4 = Cr2(SO4)2 + 3 H2O + 5 K2SO4
H2CO3 = H2O + CO2 =>
H2CO3 = H2O + CO2
Cu + HNO3 = Cu(NO3)2 + NO + H2O =>
3 Cu + 8 HNO3 = 3 Cu(NO3)2 + 2 NO + 4 H2O
X(OH) + HCl = XCl + H2O =>
X(OH) + HCl = XCl + H2O
BaCl2(aq) + KI(aq) = BaI2(s) + KCl(aq) =>
BaCl2(aq) + 2 KI(aq) = BaI2(s) + 2 KCl(aq)
N2 + H2O + Cl{-} = Cl2 + N2H4 + OH{-} =>
N2 + 4 H2O + 4 Cl{-} = 2 Cl2 + N2H4 + 4 OH{-}
CO(NH2)2 + NaOH = Na2CO3 + NH3 =>
CO(NH2)2 + 2 NaOH = Na2CO3 + 2 NH3
FeI2 = Fe + I =>
FeI2 = Fe + 2 I
C14H10O2 + CO(NH2)2 = C15H12N2O2 + H2O =>
C14H10O2 + CO(NH2)2 = C15H12N2O2 + H2O
Cl2(g) + KI(aq) = I2(g) + KCl =>
Cl2(g) + 2 KI(aq) = I2(g) + 2 KCl
NH4B(OH)4 + H2SO4 = H3BO3 + (NH4)2SO4 + H2O =>
2 NH4B(OH)4 + H2SO4 = 2 H3BO3 + (NH4)2SO4 + 2 H2O
SO4 + NaOH = Na2SO4 + H2O2 =>
SO4 + 2 NaOH = Na2SO4 + H2O2
C2H5OH + CO2 = C2H3O2H =>
2 C2H5OH + 2 CO2 = 3 C2H3O2H
CeF4 = CeF3 + F =>
CeF4 = CeF3 + F
NiS(s) + O2(s) = NiO(s) + SO2(s) =>
2 NiS(s) + 3 O2(s) = 2 NiO(s) + 2 SO2(s)
MnO2 + S{2-} + H{+} = MnS + H2O2 =>
MnO2 + S{2-} + 2 H{+} = MnS + H2O2
TiCl4 + I2 = Cl4 + TiI4 =>
TiCl4 + 2 I2 = Cl4 + TiI4
Ag + S3 = Ag2S =>
6 Ag + S3 = 3 Ag2S
H2O + CO2 = C6H12O6 + O2 =>
6 H2O + 6 CO2 = C6H12O6 + 6 O2
NaClO3 + MnO2 + NaOH = NaCl2 + Na2MnO4 + H2O =>
4 NaClO3 + 11 MnO2 + 20 NaOH = 2 NaCl2 + 11 Na2MnO4 + 10 H2O
Na2Cr + BaCl2 = NaCl + BaCr =>
Na2Cr + BaCl2 = 2 NaCl + BaCr
Sn + HCl = H2 + SnCl2 =>
Sn + 2 HCl = H2 + SnCl2
MnO2 + HCO3 + H = MnCO3 + H2O =>
MnO2 + HCO3 + 3 H = MnCO3 + 2 H2O
PBr3 + NaOH = Na3PO3 + H2O + NaBr =>
PBr3 + 6 NaOH = Na3PO3 + 3 H2O + 3 NaBr
C6H4COOHCOOK + NaOH = C6H4COONaCOOK + H2O =>
C6H4COOHCOOK + NaOH = C6H4COONaCOOK + H2O
HCl(g) + Na2CO3(aq) = NaCl + H2O(l) + CO2(g) =>
2 HCl(g) + Na2CO3(aq) = 2 NaCl + H2O(l) + CO2(g)
Ca + O2 = CaO = Co2 =>
2 Ca + O2 = 2 CaO
H2O = H2 + O =>
H2O = H2 + O
Ca(OH)2 + H3PO4 = Ca3(PO4)2 + H2O =>
3 Ca(OH)2 + 2 H3PO4 = Ca3(PO4)2 + 6 H2O
Fe{2+}(aq) + Pb(s) = Pb{2+}(aq) + Fe(s) =>
Fe{2+}(aq) + Pb(s) = Pb{2+}(aq) + Fe(s)
H2 + Cl2 = HCl =>
H2 + Cl2 = 2 HCl
C4H9Cl + CH3Cl + Na = C5H12 + NaCl =>
C4H9Cl + CH3Cl + 2 Na = C5H12 + 2 NaCl
KBr + Ag = K + AgBr =>
KBr + Ag = K + AgBr
HCl + CaCO3 = CaCl2 + H2O + CO2 =>
2 HCl + CaCO3 = CaCl2 + H2O + CO2
KMnO4 + NH3*H2O = N2 + MnO2 + KOH + H2O =>
2 KMnO4 + 2 NH3*H2O = N2 + 2 MnO2 + 2 KOH + 4 H2O
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