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2 H2S + 3 O2 = 2 SO2 + 2 H2O
Fe + Cl2 = FeCl3 =>
2 Fe + 3 Cl2 = 2 FeCl3
Al2O3(s) + HCl(aq) = AlCl3(aq) + H2O(l) =>
Al2O3(s) + 6 HCl(aq) = 2 AlCl3(aq) + 3 H2O(l)
C6H13OH + Na = C6H13ONa + H =>
C6H13OH + Na = C6H13ONa + H
Na(s) + Cu(NO3)2(aq) = Na(NO3)(aq) + Cu(s) =>
2 Na(s) + Cu(NO3)2(aq) = 2 Na(NO3)(aq) + Cu(s)
F2 = F25 =>
25 F2 = 2 F25
Cl + ZnBr2(aq) = Zn + ClBr2 =>
Cl + ZnBr2(aq) = Zn + ClBr2
Pb4O + H2SO4 = Pb3 + SO4 + H2O =>
3 Pb4O + 3 H2SO4 = 4 Pb3 + 3 SO4 + 3 H2O
NaOH + H(KC8O4H4) = Na(KC8O4H4) + H2O =>
NaOH + H(KC8O4H4) = Na(KC8O4H4) + H2O
Na2SO3 + MnO4 = Na2SO4 + MnO2 =>
2 Na2SO3 + MnO4 = 2 Na2SO4 + MnO2
Al2O3 + HNO3 = Al(NO3)3 + H2O =>
Al2O3 + 6 HNO3 = 2 Al(NO3)3 + 3 H2O
TiOCl2 + NH3 + H2O = Ti(OH)4 + NH4Cl =>
TiOCl2 + 2 NH3 + 3 H2O = Ti(OH)4 + 2 NH4Cl
Li + BaO = Li2O + Ba =>
2 Li + BaO = Li2O + Ba
Al(OH)3 + HBr = AlBr3 + H2O1 =>
Al(OH)3 + 3 HBr = AlBr3 + 3 H2O1
Ca(OH)2 + (NH4)2SO4 = CaSO4 + NH3 + H2O =>
Ca(OH)2 + (NH4)2SO4 = CaSO4 + 2 NH3 + 2 H2O
Cu3N2 + NaOH = Cu(OH)2 + Na3N =>
Cu3N2 + 6 NaOH = 3 Cu(OH)2 + 2 Na3N
Cu(NO3)2 + NH4I = CuNH4 + I(NO3)2 =>
Cu(NO3)2 + NH4I = CuNH4 + I(NO3)2
NH4NO3 + Na3PO4 = NH4PO4 + Na3NO3 =>
NH4NO3 + Na3PO4 = NH4PO4 + Na3NO3
H3N = H3 + N =>
H3N = H3 + N
KMnO4 + H2C2O4 = KC2O4 + MnO4H2 =>
KMnO4 + H2C2O4 = KC2O4 + MnO4H2
Na(s) + H2(l) = NaH(s) =>
2 Na(s) + H2(l) = 2 NaH(s)
NaO + H2SO4 = Na2SO4 + H2O2 =>
2 NaO + H2SO4 = Na2SO4 + H2O2
H{+} + As + ClO3{-} + H2O = H3AsO3 + HClO =>
3 H{+} + 4 As + 3 ClO3{-} + 6 H2O = 4 H3AsO3 + 3 HClO
Na2HPO4 + FeCl3 = NaCl + Fe2(HPO4)3 =>
3 Na2HPO4 + 2 FeCl3 = 6 NaCl + Fe2(HPO4)3
C5H11OH + Na2SO4 = NaOH + (C5H11)2SO4 =>
2 C5H11OH + Na2SO4 = 2 NaOH + (C5H11)2SO4
Cs + P4 = Cs3P =>
12 Cs + P4 = 4 Cs3P
HKCO2 + HCl = KCl + H2 + CO2 =>
HKCO2 + HCl = KCl + H2 + CO2
NaHCO3 + C6H8O7 = H2O + CO2 + C6H5O7Na3 =>
3 NaHCO3 + C6H8O7 = 3 H2O + 3 CO2 + C6H5O7Na3
Al(NH3)3 + HCl = AlCl3 + NH4 =>
Al(NH3)3 + 3 HCl = AlCl3 + 3 NH4
C4H8 + KMnO4 + H2SO4 = C4H6O3 + K2SO4 + MnSO4 + H2O =>
5 C4H8 + 8 KMnO4 + 12 H2SO4 = 5 C4H6O3 + 4 K2SO4 + 8 MnSO4 + 17 H2O
Pb(NO3)2 + K2Cr2O7 = K(NO3)2 + Pb2Cr2O7 =>
2 Pb(NO3)2 + K2Cr2O7 = 2 K(NO3)2 + Pb2Cr2O7
FeCl3 + HBr = FeBr2 + Br2 + HCl =>
2 FeCl3 + 6 HBr = 2 FeBr2 + Br2 + 6 HCl
CH3CO2 + SO4 = H2S + H2O + CO2 =>
10 CH3CO2 + 7 SO4 = 7 H2S + 8 H2O + 20 CO2
Na3PO4 + Ba(IO3)2 = NaIO3 + Ba3(PO4)2 =>
2 Na3PO4 + 3 Ba(IO3)2 = 6 NaIO3 + Ba3(PO4)2
Pb(NO3)2 + K2(CrO4) = Pb(CrO4) + K(NO3) =>
Pb(NO3)2 + K2(CrO4) = Pb(CrO4) + 2 K(NO3)
Zn(NO3)2 + CH4N2O = ZnO + NO + CO2 + H2O =>
5 Zn(NO3)2 + 3 CH4N2O = 5 ZnO + 16 NO + 3 CO2 + 6 H2O
P3 + O2 + S = P4OS2 =>
8 P3 + 3 O2 + 12 S = 6 P4OS2
CS2 + O2 = CO2 + SO2 = =>
CS2 + 3 O2 = CO2 + 2 SO2
Al2(SO4)3 + NH3 = [Al2(NH3)9](SO4)3 =>
Al2(SO4)3 + 9 NH3 = [Al2(NH3)9](SO4)3
C4H6 + O2 = CO2 + H2O =>
2 C4H6 + 11 O2 = 8 CO2 + 6 H2O
FeCl3 + Na2S + H2O = Fe(OH)3 + NaCl + H2S =>
2 FeCl3 + 3 Na2S + 6 H2O = 2 Fe(OH)3 + 6 NaCl + 3 H2S
H2S + SO3 = H2S2O3 =>
H2S + SO3 = H2S2O3
H3(AsO4) + Fe3 = Fe(AsO4) + H2 =>
6 H3(AsO4) + 2 Fe3 = 6 Fe(AsO4) + 9 H2
PCl5 + H2O = H3P4 + HCl + O2 =>
16 PCl5 + 46 H2O = 4 H3P4 + 80 HCl + 23 O2
CaCl2 + CaCO3 = Ca2CO3 + Cl2 =>
CaCl2 + CaCO3 = Ca2CO3 + Cl2
CH3COOH + KOH = KCH3COO + H2O =>
CH3COOH + KOH = KCH3COO + H2O
Ag2O = Ag + O2 =>
2 Ag2O = 4 Ag + O2
NH2(CH3)6NH2 + COOH(CH3)4COOH = NH2(CH3)6NHCO(CH3)4COOH + H2O =>
NH2(CH3)6NH2 + COOH(CH3)4COOH = NH2(CH3)6NHCO(CH3)4COOH + H2O
CaSO4 + C = CaCO3 + CO2 + S =>
2 CaSO4 + 3 C = 2 CaCO3 + CO2 + 2 S
C3H4O = C18H30O2 + (C2HO)3 + H2O =>
10 C3H4O = C18H30O2 + 2(C2HO)3 + 2 H2O
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