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2 FeS2 + 15 O + 4 H2O = Fe2O3 + 4 H2SO4
FeS2 + H2O + O = FeSO4 + H2SO4 =>
FeS2 + H2O + 7 O = FeSO4 + H2SO4
Al(SO4) + CaPO4 = AlPO4 + CaSO4 =>
Al(SO4) + CaPO4 = AlPO4 + CaSO4
Al + KOH + H2O = K(Al(OH)4) + H2 =>
2 Al + 2 KOH + 6 H2O = 2 K(Al(OH)4) + 3 H2
AgNO3 + CuNO32 = AgNO32 + CuNO3 =>
AgNO3 + CuNO32 = AgNO32 + CuNO3
KOH = K2O + H2O =>
2 KOH = K2O + H2O
FeCl2 = Fe + FeCl3 =>
3 FeCl2 = Fe + 2 FeCl3
AgOH + NH4OH = [Ag(NH3)2]OH + H2O =>
AgOH + 2 NH4OH = [Ag(NH3)2]OH + 2 H2O
NH3 + O2 = HNO2 + H2O =>
2 NH3 + 3 O2 = 2 HNO2 + 2 H2O
P4 + O2 = P2O5 =>
P4 + 5 O2 = 2 P2O5
(CuOH)2SO4 + NH4OH = [Cu(NH3)4]SO4 + H2O + [Cu(NH3)4](OH)2 =>
(CuOH)2SO4 + 8 NH4OH = [Cu(NH3)4]SO4 + 8 H2O + [Cu(NH3)4](OH)2
H2 + AlCl3 = Al + HCl3 =>
H2 + 2 AlCl3 = 2 Al + 2 HCl3
K2Cr2O7 + S + H2O = SO2 + KOH + CrO =>
K2Cr2O7 + 2 S + H2O = 2 SO2 + 2 KOH + 2 CrO
NaHCO3 + SrCl2 = NaCl2 + SrHCO3 =>
NaHCO3 + SrCl2 = NaCl2 + SrHCO3
H2O + SO3 = H2SO4 =>
H2O + SO3 = H2SO4
Cu2S + KMnO4 = MnO2 + SO2 + CuO + K2O =>
3 Cu2S + 8 KMnO4 = 8 MnO2 + 3 SO2 + 6 CuO + 4 K2O
FeS2 + H2O + O = H2SO4 + Fe(OH)3 =>
2 FeS2 + 7 H2O + 15 O = 4 H2SO4 + 2 Fe(OH)3
MgCl2 + KOH = Mg(OH)2 + KCl =>
MgCl2 + 2 KOH = Mg(OH)2 + 2 KCl
HgCl2 + KOH = KCl2 + HgO + H2 =>
2 HgCl2 + 2 KOH = 2 KCl2 + 2 HgO + H2
KMnO4 + H2SO4 + H2O2 = K(SO5) + MnO4 + H2 =>
2 KMnO4 + 2 H2SO4 + H2O2 = 2 K(SO5) + 2 MnO4 + 3 H2
I2 + Al = Al2I6 =>
3 I2 + 2 Al = Al2I6
Pb(NO3)2 + KNa = PbNa2 + KNO3 =>
Pb(NO3)2 + 2 KNa = PbNa2 + 2 KNO3
CO3{2-} + Na{+} + H2O = CO3H2 + Na2O =>
CO3{2-} + 2 Na{+} + H2O = CO3H2 + Na2O
Cr7C3 + C = Cr3C2 =>
3 Cr7C3 + 5 C = 7 Cr3C2
CaO + H2O = O2 + H2Ca =>
CaO + H2O = O2 + H2Ca
C57H100O6 + O2 = CO2 + H2O =>
C57H100O6 + 79 O2 = 57 CO2 + 50 H2O
NaOH + C6H4(OH)2 = C6H4(NaO)2 + H2O =>
2 NaOH + C6H4(OH)2 = C6H4(NaO)2 + 2 H2O
MnCl4 = Mn + Cl =>
MnCl4 = Mn + 4 Cl
NaI(aq) + Cl2(g) = I2(s) + NaCl(aq) =>
2 NaI(aq) + Cl2(g) = I2(s) + 2 NaCl(aq)
In + Se = In2Se6 =>
2 In + 6 Se = In2Se6
Ca + HNo3 = Ca(No3)2 + H2 =>
Ca + 2 HNo3 = Ca(No3)2 + H2
CuS + HNO3 = CuO + S + NO + H2O =>
3 CuS + 2 HNO3 = 3 CuO + 3 S + 2 NO + H2O
Fe(NO3)3(aq) + Ca(OH)2(aq) = Ca(NO3)2(aq) + Fe(OH)3 =>
2 Fe(NO3)3(aq) + 3 Ca(OH)2(aq) = 3 Ca(NO3)2(aq) + 2 Fe(OH)3
K3CO2 + CaCl2 = KCl + Ca3(CO2)2 =>
2 K3CO2 + 3 CaCl2 = 6 KCl + Ca3(CO2)2
Cu50Al + Fe + Al = Al6Cu15Fe19 =>
3 Cu50Al + 190 Fe + 57 Al = 10 Al6Cu15Fe19
CuCl2 + NaI = Cu + I2 + NaCl =>
CuCl2 + 2 NaI = Cu + I2 + 2 NaCl
NaI + HNo3 = NaNo3 + IH =>
NaI + HNo3 = NaNo3 + IH
ClCa + AgNa = NaCl + AgCa =>
ClCa + AgNa = NaCl + AgCa
K2Cr2O7 + H2O + S = SO2 + KOH + Cr2O3 =>
2 K2Cr2O7 + 2 H2O + 3 S = 3 SO2 + 4 KOH + 2 Cr2O3
K2CrO7 + C2H6O + HCl = KCl + CrCl3 + C2H4O + H2O =>
2 K2CrO7 + 9 C2H6O + 10 HCl = 4 KCl + 2 CrCl3 + 9 C2H4O + 14 H2O
HOF(l) = HF(l) + O2(g) =>
2 HOF(l) = 2 HF(l) + O2(g)
Mg + CH2(COOH)2 = Mg(COOH)2 + CH2 =>
Mg + CH2(COOH)2 = Mg(COOH)2 + CH2
Mg(HSO4)2 + MgOHNO3 = MgSO4 + Mg(NO3)2 + H2O =>
Mg(HSO4)2 + 2 MgOHNO3 = 2 MgSO4 + Mg(NO3)2 + 2 H2O
Fe + ZnSO4 = FeSO4 + Zn =>
Fe + ZnSO4 = FeSO4 + Zn
CH3COC2H5NH + NaOH = CH3COONa + C2H5NH2 =>
CH3COC2H5NH + NaOH = CH3COONa + C2H5NH2
Na2CO3 + CaCO3 = Na2O*CaO* + CO2 =>
Na2CO3 + CaCO3 = Na2O*CaO* + 2 CO2
CuCl2 + NaS = CuS + NaCl2 =>
CuCl2 + NaS = CuS + NaCl2
CH3COONa + HNO3 = NaNO3 + CH3COOH =>
CH3COONa + HNO3 = NaNO3 + CH3COOH
K2Cr2O7 + CH3COH + H2SO4 = K2S04 + Cr2(SO4)3 + H2O + CH3COOH =>
K2Cr2O7 + 16 CH3COH + 7 H2SO4 = K2S04 + Cr2(SO4)3 + 7 H2O + 16 CH3COOH
K2MnO4 + H2O2 + HCl = KMnO4 + H2O + KCl =>
2 K2MnO4 + H2O2 + 2 HCl = 2 KMnO4 + 2 H2O + 2 KCl
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