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Fe2O3 + 3 H2 = 2 Fe + 3 H2O
K2SO3 + NaMnO4 + HNO3 = K2SO4 + NaNO3 + Mn(NO3)2 + H2O =>
5 K2SO3 + 2 NaMnO4 + 6 HNO3 = 5 K2SO4 + 2 NaNO3 + 2 Mn(NO3)2 + 3 H2O
Fe2Se3 + HCl = FeCl3 + H2Se =>
Fe2Se3 + 6 HCl = 2 FeCl3 + 3 H2Se
FeS + HCl = FeCl2 + H2S =>
FeS + 2 HCl = FeCl2 + H2S
Hg2 = Hg =>
Hg2 = 2 Hg
C4H9OHCuO = C3H7CHOH2OCu =>
C4H9OHCuO = C3H7CHOH2OCu
O2 + FeS2 = SO2 + Fe2O =>
9 O2 + 4 FeS2 = 8 SO2 + 2 Fe2O
K2[Cu(CN)4] + Hg(NO3)2 = K2(Hg(CN)4) + Cu(NO3)2 =>
K2[Cu(CN)4] + Hg(NO3)2 = K2(Hg(CN)4) + Cu(NO3)2
Al2(SO4)3 + KBr = Al(Br)3 + K2SO4 =>
Al2(SO4)3 + 6 KBr = 2 Al(Br)3 + 3 K2SO4
H2S + SO4 = H2O + S8 =>
32 H2S + 8 SO4 = 32 H2O + 5 S8
PbCl2 + H2S = PbH2 + Cl2S =>
PbCl2 + H2S = PbH2 + Cl2S
Ba(N03)2(aq) + KOH(aq) = Ba(OH)2(aq) + KN03(aq) =>
Ba(N03)2(aq) + 2 KOH(aq) = Ba(OH)2(aq) + 2 KN03(aq)
Mn2{+} + e = Mn =>
Mn2{+} + e = 2 Mn
Al(OH){-} = AlOH{-} =>
Al(OH){-} = AlOH{-}
K2SnO2 + BiCl3 + KOH = Bi + K2SnO3 + KCl + H2O =>
3 K2SnO2 + 2 BiCl3 + 6 KOH = 2 Bi + 3 K2SnO3 + 6 KCl + 3 H2O
Fe(Cl3) + K2(CrO4) = Fe(CrO4) + K2(Cl3) =>
Fe(Cl3) + K2(CrO4) = Fe(CrO4) + K2(Cl3)
Pb(s)S(s) = PbS =>
Pb(s)S(s) = PbS
N1 + O2 = N2O1 = N201 =>
4 N1 + O2 = 2 N2O1
CH3COOH + NaOH = Na + H2O + CH3COO =>
CH3COOH + NaOH = Na + H2O + CH3COO
K2CO3(aq) + CdI2(aq) = KI(s) + CdCO3(g) =>
K2CO3(aq) + CdI2(aq) = 2 KI(s) + CdCO3(g)
PbCl2 + AgNO3 = AgCl + Pb(NO3)2 =>
PbCl2 + 2 AgNO3 = 2 AgCl + Pb(NO3)2
Sc2TaC2 = Ta2C + Sc4C3 =>
2 Sc2TaC2 = Ta2C + Sc4C3
KNO3 + FeSO4 + H2SO4 = K2SO4 + [Fe(NO)]SO4 + Fe2(SO4)3 + H2O =>
2 KNO3 + 8 FeSO4 + 4 H2SO4 = K2SO4 + 2[Fe(NO)]SO4 + 3 Fe2(SO4)3 + 4 H2O
Cr2O7{-2} + H{+} + {-} = Cr{+3} + H2O =>
Cr2O7{-2} + 14 H{+} + 6e = 2 Cr{+3} + 7 H2O
Ca3(PO4)2 + K2SO4 = K3PO4 + CaSO4 =>
Ca3(PO4)2 + 3 K2SO4 = 2 K3PO4 + 3 CaSO4
MeS + O2 = MeO + SO2 =>
2 MeS + 3 O2 = 2 MeO + 2 SO2
Cr2O3 + HCl = CrCl3 + H2O =>
Cr2O3 + 6 HCl = 2 CrCl3 + 3 H2O
MgCl2 + AgNo3 = AgCl + Mg(No3)2 =>
MgCl2 + 2 AgNo3 = 2 AgCl + Mg(No3)2
HNO3 + Fe(OH)3 = Fe(NO3)3 + H2O =>
3 HNO3 + Fe(OH)3 = Fe(NO3)3 + 3 H2O
Co{2}{+} + BrO3{-} + OH{-} = Co2O3{-} + Br{-} + H2O =>
12 Co{2}{+} + BrO3{-} + 30 OH{-} = 6 Co2O3{-} + Br{-} + 15 H2O
Na2CO3 + H2SO4 = H2CO3 + Na2SO4 =>
Na2CO3 + H2SO4 = H2CO3 + Na2SO4
CrCl3 + H2O2 + KOH = K2CrO4 + KCl + H2O =>
2 CrCl3 + 3 H2O2 + 10 KOH = 2 K2CrO4 + 6 KCl + 8 H2O
AI + FeCl = AICl3 + Fe =>
AI + 3 FeCl = AICl3 + 3 Fe
KNO3 + KOH + S = KNO2 + K2SO4 + H2O =>
3 KNO3 + 2 KOH + S = 3 KNO2 + K2SO4 + H2O
I2 + Br2 = IBr3 =>
I2 + 3 Br2 = 2 IBr3
Pb(CH3COO)2 + Cl2 + H2O = PbO2 + CH3COOH + HCl =>
Pb(CH3COO)2 + Cl2 + 2 H2O = PbO2 + 2 CH3COOH + 2 HCl
CuSO4 + Mg = MgCu + SO4 =>
CuSO4 + Mg = MgCu + SO4
KMnO4 + NaCl + H2SO4 = Cl2 + H2O + MnSO4 + Na2SO4 + K2SO4 =>
2 KMnO4 + 10 NaCl + 8 H2SO4 = 5 Cl2 + 8 H2O + 2 MnSO4 + 5 Na2SO4 + K2SO4
Sb + O2 = Sb4O6 =>
4 Sb + 3 O2 = Sb4O6
SiO2 + NaOH + AlOOH = NaAl(SiO4) + H2O =>
SiO2 + NaOH + AlOOH = NaAl(SiO4) + H2O
Ah + HNO3 = Ah(NO3) + H2O + NO =>
3 Ah + 4 HNO3 = 3 Ah(NO3) + 2 H2O + NO
CuS + Fe(NO3)2 = FeS + Cu(NO3)2 =>
CuS + Fe(NO3)2 = FeS + Cu(NO3)2
ICl + H2S2O7 = I2{+} + I(HSO4)3 + HS3O10{-} + HSO3Cl + H2SO4 =>
5 ICl + 9 H2S2O7 = 2 I2{+} + I(HSO4)3 + 2 HS3O10{-} + 5 HSO3Cl + 4 H2SO4
Mn2{+} + e = Mn =>
Mn2{+} + e = 2 Mn
PhCH3 + KMnO4 + H2SO4 = PhCOOH + K2SO4 + MnSO4 + H2O =>
5 PhCH3 + 6 KMnO4 + 9 H2SO4 = 5 PhCOOH + 3 K2SO4 + 6 MnSO4 + 14 H2O
Na2CO3 = CO2 + Na2O =>
Na2CO3 = CO2 + Na2O
CuBr2(aq) + CaCl2(aq) = CaBr2(aq) + CuCl2(aq) =>
CuBr2(aq) + CaCl2(aq) = CaBr2(aq) + CuCl2(aq)
SrCO3 + NH4NO3 = Sr(NO3)2 + (NH4)2CO3 =>
SrCO3 + 2 NH4NO3 = Sr(NO3)2 + (NH4)2CO3
Rb + RbOH = Rb2O + H2 =>
2 Rb + 2 RbOH = 2 Rb2O + H2
Mn2{+} + e = Mn =>
Mn2{+} + e = 2 Mn
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