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2 Fe2O3 + 3 C = 4 Fe + 3 CO2
Cs + Cl2 = CsCl =>
2 Cs + Cl2 = 2 CsCl
Al2O3(s) + H2So4(aq) = Al2(So4)3(aq) + H2O(l) =>
Al2O3(s) + 3 H2So4(aq) = Al2(So4)3(aq) + 3 H2O(l)
Mg(OH)2 + HCl = MgCl2 + H2O =>
Mg(OH)2 + 2 HCl = MgCl2 + 2 H2O
NH3 + H2O + Cr2(SO4)3 = Cr(OH)3 + (NH4)2SO4 =>
6 NH3 + 6 H2O + Cr2(SO4)3 = 2 Cr(OH)3 + 3(NH4)2SO4
Bi + O2 = Bi2O5 =>
4 Bi + 5 O2 = 2 Bi2O5
ZnSO4 + NaCl = ZnCl2 + SO4Na2 =>
ZnSO4 + 2 NaCl = ZnCl2 + SO4Na2
AlCl2 + NH(OH)3 = Al(OH)3 + NHCl2 =>
AlCl2 + NH(OH)3 = Al(OH)3 + NHCl2
CHCH + Cu = CHCHCu =>
CHCH + Cu = CHCHCu
Pb{+2} + PO4{-3} = Pb(PO4){-} =>
Pb{+2} + PO4{-3} = Pb(PO4){-}
ZnS + O2 = ZnO + S2 =>
2 ZnS + O2 = 2 ZnO + S2
KMnO7 + H2SO4 + Na2SO3 = Mn(SO5) + K2SO4 + Na2SO4 + H2O =>
2 KMnO7 + 3 H2SO4 + 9 Na2SO3 = 2 Mn(SO5) + K2SO4 + 9 Na2SO4 + 3 H2O
FeCl2 + NaOH = Fe(OH)2 + NaCl =>
FeCl2 + 2 NaOH = Fe(OH)2 + 2 NaCl
TiO2 + Fe2O3 = TiFe2O5 =>
TiO2 + Fe2O3 = TiFe2O5
PBS + H2O2 = PB(SO4) + H2O =>
PBS + 4 H2O2 = PB(SO4) + 4 H2O
C2H4 + O2 = CO2 + H2O =>
C2H4 + 3 O2 = 2 CO2 + 2 H2O
MgBr2 + Pb(NO3)2 = Mg(NO3)2 + PbBr2 =>
MgBr2 + Pb(NO3)2 = Mg(NO3)2 + PbBr2
NaNO3 + H2O = NaNO3H2O =>
NaNO3 + H2O = NaNO3H2O
Sr + NH3 = Sr(NH2)2 + H2 =>
Sr + 2 NH3 = Sr(NH2)2 + H2
NaHCO3 + NaCl = NaHCl2 + Na2CO3 =>
NaHCO3 + 2 NaCl = NaHCl2 + Na2CO3
H2SO4 + BaSO3 = H2SO3 + BaSO4 =>
H2SO4 + BaSO3 = H2SO3 + BaSO4
Zn3(PO4)2 + CuSO4 = Cu3(PO4)2 + ZnSO4 =>
Zn3(PO4)2 + 3 CuSO4 = Cu3(PO4)2 + 3 ZnSO4
CO + NO = CO2 + N2 =>
2 CO + 2 NO = 2 CO2 + N2
AgNO3 + NaF = AgF + NaNO3 =>
AgNO3 + NaF = AgF + NaNO3
Mn + S = MnS =>
Mn + S = MnS
H2SO4 + KOH = KSO4 + H + H2O =>
H2SO4 + KOH = KSO4 + H + H2O
CaCl2 + NaOH = Ca(OH)2 + NaCl =>
CaCl2 + 2 NaOH = Ca(OH)2 + 2 NaCl
Br + KI = BrI + K =>
Br + KI = BrI + K
Sr + NH3 = Sr3N2 + H2 =>
3 Sr + 2 NH3 = Sr3N2 + 3 H2
C6H12O6 + OH{-} = C6H12O7 + H2O + e =>
C6H12O6 + 2 OH{-} = C6H12O7 + H2O + 2e
Fe + O2 = Fe2O3 =>
4 Fe + 3 O2 = 2 Fe2O3
I2 + Na3AsO3 + H2O = H3AsO4 + NaOH + NaI =>
I2 + Na3AsO3 + 2 H2O = H3AsO4 + NaOH + 2 NaI
Cu2O + NH3*H2O = [Cu(NH3)2]OH + H2O =>
Cu2O + 4 NH3*H2O = 2[Cu(NH3)2]OH + 3 H2O
Si + HCl = SiCl4 + H2 =>
Si + 4 HCl = SiCl4 + 2 H2
CuSO4 + NaOH = Cu(OH)2 + Na2SO4 =>
CuSO4 + 2 NaOH = Cu(OH)2 + Na2SO4
Ag3SO4 + BaCl2 = Ag3Cl2 + BaSO4 =>
Ag3SO4 + BaCl2 = Ag3Cl2 + BaSO4
FeS2 + K2MnO4 + H2O = Fe2(SO4) + MnSO4 + K2SO4 + H2 =>
4 FeS2 + 3 K2MnO4 + 20 H2O = 2 Fe2(SO4) + 3 MnSO4 + 3 K2SO4 + 20 H2
Al(s) + NaOH(aq) = Na3AlO3(aq) + H2(g) =>
2 Al(s) + 6 NaOH(aq) = 2 Na3AlO3(aq) + 3 H2(g)
CO2 + N2 = CO2N2 =>
CO2 + N2 = CO2N2
Ca(HCO3)2 + KOH = CaCO3 + K2CO3 + H2O =>
Ca(HCO3)2 + 2 KOH = CaCO3 + K2CO3 + 2 H2O
Al2O3 + C = Al2 + CO =>
Al2O3 + 3 C = Al2 + 3 CO
FeO(s) + SO3(g) = Fe2O3(s) + SO2(g) =>
2 FeO(s) + SO3(g) = Fe2O3(s) + SO2(g)
CH3CCH3CH2CH3OH + HCl = CH3CCH3CH2CH3Cl + H2O =>
CH3CCH3CH2CH3OH + HCl = CH3CCH3CH2CH3Cl + H2O
Fe2(SO4)3 + Cu = Fe2(SO4)2 + CuSO4 =>
Fe2(SO4)3 + Cu = Fe2(SO4)2 + CuSO4
Fe(CO)5 + I2 = FeI3 + CO =>
2 Fe(CO)5 + 3 I2 = 2 FeI3 + 10 CO
Fe(No3)2 + Ca(OH)2 = Fe(OH)2 + Ca(No3)2 =>
Fe(No3)2 + Ca(OH)2 = Fe(OH)2 + Ca(No3)2
Al2(SO4)3 + BaCl2 = AlCl3 + Ba2(SO4)2 =>
2 Al2(SO4)3 + 6 BaCl2 = 4 AlCl3 + 3 Ba2(SO4)2
PbO2H2 + HNO3 = PbN2O6 + H2O =>
PbO2H2 + 2 HNO3 = PbN2O6 + 2 H2O
N2 + H2 = NH3 =>
N2 + 3 H2 = 2 NH3
NH4Cl + Ca(OH)2 = CaCl + NH4(OH)2 =>
NH4Cl + Ca(OH)2 = CaCl + NH4(OH)2
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