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4 Al2O3 + 9 Fe = 3 Fe3O4 + 8 Al
Ti + CuO = Cu + Ti2O3 =>
2 Ti + 3 CuO = 3 Cu + Ti2O3
Mg(OH)2 + HCl = MgCl2 + H2O =>
Mg(OH)2 + 2 HCl = MgCl2 + 2 H2O
Si(OC2H5)4 = SiO2 + O(C2H5)2 =>
Si(OC2H5)4 = SiO2 + 2 O(C2H5)2
Ca(OH)2 + Na3P04 = Ca3(P04)2 + NaOH =>
3 Ca(OH)2 + 2 Na3P04 = Ca3(P04)2 + 6 NaOH
HF + ZnO = ZnF2 + H2O =>
2 HF + ZnO = ZnF2 + H2O
Ca + Pb(No2)2 = Pb + Ca(No3) =>
4 Ca + 3 Pb(No2)2 = 3 Pb + 4 Ca(No3)
(NC(CH2)4CN) + H = H2N(CH2)6NH2 =>
(NC(CH2)4CN) + 8 H = H2N(CH2)6NH2
AsO2 + H = As + OH =>
AsO2 + 2 H = As + 2 OH
CuO2 + C4 = CuCO2 =>
4 CuO2 + C4 = 4 CuCO2
CH3CH2OH + O2 = CH3HCHO + H2O =>
4 CH3CH2OH + O2 = 4 CH3HCHO + 2 H2O
HCl + Co = CoCl3 + H3 =>
3 HCl + Co = CoCl3 + H3
NaHSO3 + K2Cr2O7 + H2SO4 = Cr2(SO4)3 + Na2SO4 + H2O + KOH =>
6 NaHSO3 + 2 K2Cr2O7 + 3 H2SO4 = 2 Cr2(SO4)3 + 3 Na2SO4 + 4 H2O + 4 KOH
Ca(OH)2 + K = Ca + OHK =>
Ca(OH)2 + 2 K = Ca + 2 OHK
Fe(OH)2 + O2 + H2O = Fe(OH)3 =>
4 Fe(OH)2 + O2 + 2 H2O = 4 Fe(OH)3
S2O3{2-} + H2O = SO4{2-} + S + OH{-} =>
3 S2O3{2-} + H2O = 2 SO4{2-} + 4 S + 2 OH{-}
(NH4)2SiO3 + H2O = H2SiO3 + NH4OH =>
(NH4)2SiO3 + 2 H2O = H2SiO3 + 2 NH4OH
HCl + NaOH = NaCl + H2O =>
HCl + NaOH = NaCl + H2O
I + O3 + H = IOH =>
3 I + O3 + 3 H = 3 IOH
Zn(NO2)2 + Al = Al(NO2)3 + Zn =>
3 Zn(NO2)2 + 2 Al = 2 Al(NO2)3 + 3 Zn
NH4 + NaOH = NH3 + Na + H2O =>
NH4 + NaOH = NH3 + Na + H2O
Na + Al(Cl)3 = Na(Cl) + Al =>
3 Na + Al(Cl)3 = 3 Na(Cl) + Al
Cl2(g) + LiBr(s) = LiCl(s) + Br(aq) =>
Cl2(g) + 2 LiBr(s) = 2 LiCl(s) + 2 Br(aq)
IO3{-} + SO32{-} + H{+} = I + SO42{-} + H2O =>
4 IO3{-} + SO32{-} + 4 H{+} = 4 I + SO42{-} + 2 H2O
NN + H6 = H3N =>
NN + H6 = 2 H3N
Cu + KOH = CuOH + K =>
Cu + KOH = CuOH + K
C5H10O2 + O2 = CO2 + H2O =>
2 C5H10O2 + 13 O2 = 10 CO2 + 10 H2O
AgNO3 + NaCl = AgCl + NaNO3 =>
AgNO3 + NaCl = AgCl + NaNO3
NaOH + MgF2 = MgOH + NaF2 =>
NaOH + MgF2 = MgOH + NaF2
Al(HSO4)3 + Na2CO3 = NaHSO4 + Al2(CO3)3 =>
2 Al(HSO4)3 + 3 Na2CO3 = 6 NaHSO4 + Al2(CO3)3
NaOH + Nh4Cl = NaCl + Nh4OH =>
NaOH + Nh4Cl = NaCl + Nh4OH
Ag + [Fe(Cn)6] = Ag[Fe(Cn)6] =>
Ag + [Fe(Cn)6] = Ag[Fe(Cn)6]
Cu + HNO3 = Cu(NO3)2 + NO + H2O =>
3 Cu + 8 HNO3 = 3 Cu(NO3)2 + 2 NO + 4 H2O
CuO + H2SO4 = CuSO4 + H2O =>
CuO + H2SO4 = CuSO4 + H2O
CO(NH2)2 + NaOH = Na2CO3 + NH3 =>
CO(NH2)2 + 2 NaOH = Na2CO3 + 2 NH3
(NH4)2Cr2O7 = Cr2O3 + N2 + H2O =>
(NH4)2Cr2O7 = Cr2O3 + N2 + 4 H2O
CO2 + NH3 + H2 = C3H7NO2 + H2O =>
3 CO2 + NH3 + 6 H2 = C3H7NO2 + 4 H2O
KClO3 = KCl + O2 =>
2 KClO3 = 2 KCl + 3 O2
C3H5O3{-} + NO3{-} + H{+} = C3H3O3{-} + N2 + H2O =>
5 C3H5O3{-} + 2 NO3{-} + 2 H{+} = 5 C3H3O3{-} + N2 + 6 H2O
KMnO4 + SO2 + H2O = KMnO2 + H2SO4 =>
KMnO4 + 2 SO2 + 2 H2O = KMnO2 + 2 H2SO4
SO2 + O2 = SO3 =>
2 SO2 + O2 = 2 SO3
(NH4)2Cr + O2 = (NH4)2O + Cr =>
2(NH4)2Cr + O2 = 2(NH4)2O + 2 Cr
NaOH + CH3COOH = NaC2O2H3 + H2O =>
NaOH + CH3COOH = NaC2O2H3 + H2O
ClO3{-} + C2O4{2-} + H{+} = ClO2 + CO2 + H2O =>
2 ClO3{-} + C2O4{2-} + 4 H{+} = 2 ClO2 + 2 CO2 + 2 H2O
Lithium + Chlorine = Lithiumchloride =>
2 Li + Cl2 = 2 LiCl
CrO4{2-} + S{2-} + H2O = Cr(OH)6{3-} + S(s) + OH{-} =>
2 CrO4{2-} + 3 S{2-} + 8 H2O = 2 Cr(OH)6{3-} + 3 S(s) + 4 OH{-}
CH3CH2CHO + Ag2O = Ag + CH3CH2COOH =>
CH3CH2CHO + Ag2O = 2 Ag + CH3CH2COOH
HClO2 + Cr(OH)3 = Cr(ClO2)3 + H2O =>
3 HClO2 + Cr(OH)3 = Cr(ClO2)3 + 3 H2O
Na2CO3 + AlN = Na3N + Al2(CO3)3 =>
3 Na2CO3 + 2 AlN = 2 Na3N + Al2(CO3)3
Pb2N3 = Pb + N2 =>
2 Pb2N3 = 4 Pb + 3 N2
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