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2 Al2O3 = 4 Al + 3 O2
OH{-} + Zn{2+} = ZnO2{2-} + H2O =>
4 OH{-} + Zn{2+} = ZnO2{2-} + 2 H2O
As2S5 + NO3{-} + H2O = AsO4{-3} + SO4{-2} + NO + H3O{+} =>
3 As2S5 + 40 NO3{-} + 12 H2O = 6 AsO4{-3} + 15 SO4{-2} + 40 NO + 8 H3O{+}
NaAlO2 + HCl = NaCl + HAlO2 =>
NaAlO2 + HCl = NaCl + HAlO2
AgNO{3} + K{2}CrO{4} = Ag{2}CrO{4} + KNO{3} =>
AgNO{3} + K{2}CrO{4} = Ag{2}CrO{4} + KNO{3}
As3S3 + HNO3 = H3AsO4 + SO2 + NO2 + H2O =>
As3S3 + 27 HNO3 = 3 H3AsO4 + 3 SO2 + 27 NO2 + 9 H2O
Ni2O3 + C = Ni + CO =>
Ni2O3 + 3 C = 2 Ni + 3 CO
MgO(aq) + HCl(aq) = MgCl2(aq) + H2O(l) =>
MgO(aq) + 2 HCl(aq) = MgCl2(aq) + H2O(l)
NaCl + O2 = Na2O + Cl2 =>
4 NaCl + O2 = 2 Na2O + 2 Cl2
C6H12(l) + O2 = CO2(g) + H2O(g) =>
C6H12(l) + 9 O2 = 6 CO2(g) + 6 H2O(g)
HgSO4 + H2O = HgO + H2SO4 =>
HgSO4 + H2O = HgO + H2SO4
HCl + Br2 = HBr + Cl2 =>
2 HCl + Br2 = 2 HBr + Cl2
CaP = Ca + P =>
CaP = Ca + P
Mn(NO3)2 + K2S = MnS + K2(NO3)2 =>
Mn(NO3)2 + K2S = MnS + K2(NO3)2
BaO2 + HCl = BaCl2 + H2O2 =>
BaO2 + 2 HCl = BaCl2 + H2O2
C2H4(g) + SCl2(g) = C4H8Cl2S(g) =>
2 C2H4(g) + SCl2(g) = C4H8Cl2S(g)
CuI + NH3 = [Cu(NH3)2]I =>
CuI + 2 NH3 = [Cu(NH3)2]I
C18H38 = C12H26 + C3H6 =>
C18H38 = C12H26 + 2 C3H6
FeI3 + Cl2 = FeCl2 + I2 =>
2 FeI3 + 2 Cl2 = 2 FeCl2 + 3 I2
CCl4 + Br2 = CCl3 + BrCl =>
2 CCl4 + Br2 = 2 CCl3 + 2 BrCl
Zn + Au(NO2)3 = Zn(NO2) + Au =>
3 Zn + Au(NO2)3 = 3 Zn(NO2) + Au
CaC2 + O2 = CaO + CO2 =>
2 CaC2 + 5 O2 = 2 CaO + 4 CO2
MgCO3(s) = MgO(s) + CO2(g) =>
MgCO3(s) = MgO(s) + CO2(g)
NF2 = N + F =>
NF2 = N + 2 F
Ba(s) + N2(g) = Ba3N2 =>
3 Ba(s) + N2(g) = Ba3N2
B + Br = BBr2 =>
B + 2 Br = BBr2
Cr(NO3)3 + Na2CO3 + H2O = Cr(OH)3 + NaNO3 + CO2 =>
2 Cr(NO3)3 + 3 Na2CO3 + 3 H2O = 2 Cr(OH)3 + 6 NaNO3 + 3 CO2
Fe2 + O2 + S = FeSO =>
Fe2 + O2 + 2 S = 2 FeSO
NaOH + KC7H4O2COOH = KC7H4O2COONa + H2O =>
NaOH + KC7H4O2COOH = KC7H4O2COONa + H2O
H3C6H5O7 = H{+} + C6H5O7{-3} =>
H3C6H5O7 = 3 H{+} + C6H5O7{-3}
ZnI2 + H2O = Zn(H2O)2I2 =>
ZnI2 + 2 H2O = Zn(H2O)2I2
PbBr2 + O2 = PbO + Br2 =>
2 PbBr2 + O2 = 2 PbO + 2 Br2
Cu + NaClO = CuCl + NaO =>
Cu + NaClO = CuCl + NaO
C7H15COOH + O2 = CO2 + H2O =>
C7H15COOH + 11 O2 = 8 CO2 + 8 H2O
C2H6O + O2(g) = CO2(g) + H2O(l) =>
C2H6O + 3 O2(g) = 2 CO2(g) + 3 H2O(l)
Ca + Fe(NO3)3 = Ca(NO3)2 + Fe =>
3 Ca + 2 Fe(NO3)3 = 3 Ca(NO3)2 + 2 Fe
HCl + Br2 = HBr + Cl2 =>
2 HCl + Br2 = 2 HBr + Cl2
Hg + OH = Hg(OH) =>
Hg + OH = Hg(OH)
C8H9NO + O2 = CO2 + H2O + NO2 =>
4 C8H9NO + 43 O2 = 32 CO2 + 18 H2O + 4 NO2
MnS + H2O = MnO + H2S =>
MnS + H2O = MnO + H2S
Cu + Zn = CuZn =>
Cu + Zn = CuZn
ZnBr2(aq) + NH4OH(aq) = ZnOH(s) + NH4Br2(aq) =>
ZnBr2(aq) + NH4OH(aq) = ZnOH(s) + NH4Br2(aq)
Na2CO3 + H2O2 = C2H6Na4O12 =>
2 Na2CO3 + 3 H2O2 = C2H6Na4O12
Ni + P = Ni12P5 =>
12 Ni + 5 P = Ni12P5
Na(s) + MgCl2(aq) = NaCl + Mg =>
2 Na(s) + MgCl2(aq) = 2 NaCl + Mg
(NH4)2SO4 + Mn(C2H3O2)2 = NH4(C2H3O2) + Mn(SO4) =>
(NH4)2SO4 + Mn(C2H3O2)2 = 2 NH4(C2H3O2) + Mn(SO4)
KNO3 = KNO2 + O2 =>
2 KNO3 = 2 KNO2 + O2
CH2CHCH2CH3 + KMnO4 + H2SO4 = CH3COOH + H2O + MnSO4 + K2SO4 =>
5 CH2CHCH2CH3 + 8 KMnO4 + 12 H2SO4 = 10 CH3COOH + 12 H2O + 8 MnSO4 + 4 K2SO4
K4Fe(CN)6 + KMnO4 + H2SO4 = KHSO4 + Fe2(SO4)3 + MnSO4 + HNO3 + CO2 + H2O =>
10 K4Fe(CN)6 + 122 KMnO4 + 299 H2SO4 = 162 KHSO4 + 5 Fe2(SO4)3 + 122 MnSO4 + 60 HNO3 + 60 CO2 + 188 H2O
C6H4(OH)COOCH3 + NaOH = C6H4(NaO)COONa + CH3OH + H2O =>
C6H4(OH)COOCH3 + 2 NaOH = C6H4(NaO)COONa + CH3OH + H2O
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