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2 Fe{3+} + 2 Br{-} = 2 Fe{2+} + Br2
Na + Br2 = NaBr = =>
2 Na + Br2 = 2 NaBr
Sb + H2S = Sb2S3 + H2 =>
2 Sb + 3 H2S = Sb2S3 + 3 H2
K2Cr2O7 + C2H6O + H2SO4 = Cr2(SO4)3 + K2SO4 + C2H4O2 + H2O =>
2 K2Cr2O7 + 3 C2H6O + 8 H2SO4 = 2 Cr2(SO4)3 + 2 K2SO4 + 3 C2H4O2 + 11 H2O
Mn + CO2 = MnO + C =>
2 Mn + CO2 = 2 MnO + C
K2CrO4 + KBr + H2O = KCrO2 + Br2 + KOH =>
2 K2CrO4 + 6 KBr + 4 H2O = 2 KCrO2 + 3 Br2 + 8 KOH
Ni(s) + H2SO4(aq) = NiSO4 + H2(g) =>
Ni(s) + H2SO4(aq) = NiSO4 + H2(g)
C5H11NH + O2 = CO2 + H2O + NO2 =>
C5H11NH + 9 O2 = 5 CO2 + 6 H2O + NO2
MgCl2(aq) + NaOH(aq) = Mg(OH)2(aq) + NaCl(s) =>
MgCl2(aq) + 2 NaOH(aq) = Mg(OH)2(aq) + 2 NaCl(s)
Al + NaOH = Na3AlO3 + H2 =>
2 Al + 6 NaOH = 2 Na3AlO3 + 3 H2
SiO2(s) + CaCO3(s) = CaSiO3 + CO2 =>
SiO2(s) + CaCO3(s) = CaSiO3 + CO2
Mg(C9H6ON)2*4H2O + NH4{+} = C9H7ON + H2O + NH3 + Mg{2+} =>
Mg(C9H6ON)2*4H2O + 2 NH4{+} = 2 C9H7ON + 4 H2O + 2 NH3 + Mg{2+}
Be + Fe(NO3)2 = Be(NO3) + Fe =>
2 Be + Fe(NO3)2 = 2 Be(NO3) + Fe
ZnCl2 + NaOH = NaCl + Zn(OH)2 =>
ZnCl2 + 2 NaOH = 2 NaCl + Zn(OH)2
AgNO3(ag) + Cu(s) = Cu(NO3)2 + Ag =>
2 AgNO3(ag) + Cu(s) = Cu(NO3)2 + 2 Ag
FeSO4 + HNO3 = Fe2(SO4)3 + Fe(NO3)3 + NO2 + H2O =>
3 FeSO4 + 6 HNO3 = Fe2(SO4)3 + Fe(NO3)3 + 3 NO2 + 3 H2O
ZnCl2 + CuCl2 = ZnCu + Cl =>
ZnCl2 + CuCl2 = ZnCu + 4 Cl
Bi(NO3)3 + K2SNO2 + KOH = Bi + K2SNO3 + KNO3 + H2O =>
2 Bi(NO3)3 + 3 K2SNO2 + 6 KOH = 2 Bi + 3 K2SNO3 + 6 KNO3 + 3 H2O
NaCl + CO2 + H2O = HCl + NaHCO3 =>
NaCl + CO2 + H2O = HCl + NaHCO3
CH2O2 + NaOH = HCOONa + H2O =>
CH2O2 + NaOH = HCOONa + H2O
CaSO3 + H2O = Ca(OH)2 + SO2 =>
CaSO3 + H2O = Ca(OH)2 + SO2
HNO3 + Ca3P2 = H3P + Ca(NO3)2 =>
6 HNO3 + Ca3P2 = 2 H3P + 3 Ca(NO3)2
HCl + HBr = H2 + ClBr =>
HCl + HBr = H2 + ClBr
Li2SO3 = Li2SO4 + Li2S =>
4 Li2SO3 = 3 Li2SO4 + Li2S
CuCl + HNO3 = Cu(NO3)2 + HCl + NO + H2O =>
3 CuCl + 7 HNO3 = 3 Cu(NO3)2 + 3 HCl + NO + 2 H2O
N4NNHN = H2 + N2 =>
2 N4NNHN = H2 + 7 N2
ZnS + SiO2 = ZnSi + SO2 =>
ZnS + SiO2 = ZnSi + SO2
HS + H2O = H3O + S =>
HS + H2O = H3O + S
NH3CO3 + COH = NH3 + CO2 + H2O =>
3 NH3CO3 + 2 COH = 3 NH3 + 5 CO2 + H2O
F = F2 =>
2 F = F2
C3H6 = C2H4 =>
2 C3H6 = 3 C2H4
CU(OH)2 + H2SO4 = H2O + CUSO4 =>
CU(OH)2 + H2SO4 = 2 H2O + CUSO4
Fe(ClO4)2 + Al = Al(ClO4)2 + Fe =>
Fe(ClO4)2 + Al = Al(ClO4)2 + Fe
FeO + HNO3 = Fe(NO3)2 + H2O =>
FeO + 2 HNO3 = Fe(NO3)2 + H2O
C4H7NO4 + O2 = CO2 + H2O + NO3 =>
4 C4H7NO4 + 21 O2 = 16 CO2 + 14 H2O + 4 NO3
Ca + AgBr = CaBr2 + Ag =>
Ca + 2 AgBr = CaBr2 + 2 Ag
NaOH + HCl = H2 + NaCl + O2 =>
2 NaOH + 2 HCl = 2 H2 + 2 NaCl + O2
CH(g) + O2(g) = CO2(g) + H2O(l) =>
4 CH(g) + 5 O2(g) = 4 CO2(g) + 2 H2O(l)
H2S + HNO3 = H2SO4 + NO2 + H2O =>
H2S + 8 HNO3 = H2SO4 + 8 NO2 + 4 H2O
H2(g) + As2O3(s) = AsH3(s) + H2O(g) =>
6 H2(g) + As2O3(s) = 2 AsH3(s) + 3 H2O(g)
FeCl2 + Br2 = FeCl3 + FeBr3 =>
6 FeCl2 + 3 Br2 = 4 FeCl3 + 2 FeBr3
Cd(NO3)2 + H2O = Cd + O2 + HNO3 =>
2 Cd(NO3)2 + 2 H2O = 2 Cd + O2 + 4 HNO3
CuSO4(aq) + Ba(OH)2(aq) = Cu(OH)2 + BaSO4 =>
CuSO4(aq) + Ba(OH)2(aq) = Cu(OH)2 + BaSO4
Pb(NO3)2 + FeCl2 = PbCl2 + Fe(NO3)2 =>
Pb(NO3)2 + FeCl2 = PbCl2 + Fe(NO3)2
NH4Cl + K2(HgI4) + KOH = Hg2NI + KI + KCl + H2O =>
NH4Cl + 2 K2(HgI4) + 4 KOH = Hg2NI + 7 KI + KCl + 4 H2O
AsO2{-} + I2 + H2O = I{-} + HAsO4{2-} + H{+} =>
AsO2{-} + I2 + 2 H2O = 2 I{-} + HAsO4{2-} + 3 H{+}
SO2 + H2O + CaS = S + Ca(OH)2 =>
SO2 + 2 H2O + 2 CaS = 3 S + 2 Ca(OH)2
B2H6 + O2 = HBO2 + H2O =>
B2H6 + 3 O2 = 2 HBO2 + 2 H2O
[Cr(OAc)2]2 + O2 = Cr(OAc)3 + Cr2O3 =>
6[Cr(OAc)2]2 + 3 O2 = 8 Cr(OAc)3 + 2 Cr2O3
B + HNO3 + HCl = BCl3 + NO + H2O =>
B + HNO3 + 3 HCl = BCl3 + NO + 2 H2O
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