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2 Fe2O3 + 6 H2S = S2 + 4 FeS + 6 H2O
AgBr + NH3 = Ag(NH3)2 + Br2 =>
2 AgBr + 4 NH3 = 2 Ag(NH3)2 + Br2
(NH4)2Cr2O7 = Cr2O3 + N2 + H2O =>
(NH4)2Cr2O7 = Cr2O3 + N2 + 4 H2O
C2 + H = C2H =>
C2 + H = C2H
BiCl3 + NH4OH = Bi(OH)3 + NH4Cl =>
BiCl3 + 3 NH4OH = Bi(OH)3 + 3 NH4Cl
HONH2 + HCl = HONH3 + Cl =>
HONH2 + HCl = HONH3 + Cl
CH4 + HONO2 = CH3NO2 + HOH =>
CH4 + HONO2 = CH3NO2 + HOH
Fe3O4 + H2SO4 = Fe + SO4 + H2O =>
Fe3O4 + 4 H2SO4 = 3 Fe + 4 SO4 + 4 H2O
Cu + HNO3 + H{+} = Cu{2+} + NO + H2O =>
3 Cu + 2 HNO3 + 6 H{+} = 3 Cu{2+} + 2 NO + 4 H2O
Zn + Pb[NO3]2 = Zn[NO3]2 + Pb =>
Zn + Pb[NO3]2 = Zn[NO3]2 + Pb
F + HI = FH + I =>
F + HI = FH + I
C3H7OH + NaNO2 + HCl = C3H7NO2 + NaCl + H2O =>
C3H7OH + NaNO2 + HCl = C3H7NO2 + NaCl + H2O
CH3COOH + Ba(OH)2 = Ba(COOH)2 + CH3(OH) =>
2 CH3COOH + Ba(OH)2 = Ba(COOH)2 + 2 CH3(OH)
Na + H2O = NaOH + (H2) =>
2 Na + 2 H2O = 2 NaOH + (H2)
MnSO4 = Mn{+2} + SO4{-2} =>
MnSO4 = Mn{+2} + SO4{-2}
CuSO4 + Fe(s) = Cu(s) + Fe2(SO4)3 =>
3 CuSO4 + 2 Fe(s) = 3 Cu(s) + Fe2(SO4)3
Al + ClO = AlO2 + Cl =>
Al + 2 ClO = AlO2 + 2 Cl
C12H22O11 + H2O = C2H6O + CO2 =>
C12H22O11 + H2O = 4 C2H6O + 4 CO2
Cu2 + NH3 = Cu(NH3)4 =>
Cu2 + 8 NH3 = 2 Cu(NH3)4
H2 + Cu(NO3)2 = Cu + H(NO3) =>
H2 + Cu(NO3)2 = Cu + 2 H(NO3)
Zn(OH)2 + CuCl2 = ZnCl2 + Cu(OH)2 =>
Zn(OH)2 + CuCl2 = ZnCl2 + Cu(OH)2
NaCl(s) + HNO3(aq) = NaNO3(aq) + HCl(g) =>
NaCl(s) + HNO3(aq) = NaNO3(aq) + HCl(g)
SO2 + H2O + CaS = S + Ca(OH)2 =>
SO2 + 2 H2O + 2 CaS = 3 S + 2 Ca(OH)2
Mg + Co2 = MgCo =>
2 Mg + Co2 = 2 MgCo
Ca + HCI = CaCI + H =>
Ca + HCI = CaCI + H
CO + NaOH = CO2 + NaH =>
CO + NaOH = CO2 + NaH
H2SO3 + H2O = H3O + SO4 =>
H2SO3 + 5 H2O = 4 H3O + SO4
CrCl3 + K2(Co3) = Cr2(Co3)3 + KCl =>
2 CrCl3 + 3 K2(Co3) = Cr2(Co3)3 + 6 KCl
K2SO4 = K2S + O2 =>
K2SO4 = K2S + 2 O2
Br2O + H2O = BrOH =>
Br2O + H2O = 2 BrOH
K2Cr2O7 + KI + H2SO4 = I2 + Cr2(SO4)3 + K2SO4 + H2O =>
K2Cr2O7 + 6 KI + 7 H2SO4 = 3 I2 + Cr2(SO4)3 + 4 K2SO4 + 7 H2O
Pb(NO3)2 + Na2C2O4 = PbC2O4 + Na2(NO3)2 =>
Pb(NO3)2 + Na2C2O4 = PbC2O4 + Na2(NO3)2
Zn3P2 = Zn + P4 =>
2 Zn3P2 = 6 Zn + P4
Co + NH3 = CoNH3 =>
Co + NH3 = CoNH3
S2O3{2-} = SO3{2-} + S =>
S2O3{2-} = SO3{2-} + S
MgCl2 + Na2SO3 = Mg(SO3) + NaCl =>
MgCl2 + Na2SO3 = Mg(SO3) + 2 NaCl
C3H4O + O2 = CO2 + H2O =>
2 C3H4O + 7 O2 = 6 CO2 + 4 H2O
FeCl3 + Hg = Hg2Cl2 + FeCl2 =>
2 FeCl3 + 2 Hg = Hg2Cl2 + 2 FeCl2
Br + O2 = Br2O7 =>
4 Br + 7 O2 = 2 Br2O7
SO2(g) + H2O(l) = H2SO3(l) =>
SO2(g) + H2O(l) = H2SO3(l)
Fe2 + AlCl3 = AlFe3 + Cl2 =>
3 Fe2 + 2 AlCl3 = 2 AlFe3 + 3 Cl2
BrO3 + H2O = Br2 + OH =>
2 BrO3 + 6 H2O = Br2 + 12 OH
ArOH + Na2CO3 = NaOH + Ar + CO3 =>
2 ArOH + Na2CO3 = 2 NaOH + 2 Ar + CO3
ClC6H4NH2 + HCl = ClC6H4NH3{+} + Cl{-} =>
ClC6H4NH2 + HCl = ClC6H4NH3{+} + Cl{-}
HNO2 + HCl = Cl2 + NO + H2O =>
2 HNO2 + 2 HCl = Cl2 + 2 NO + 2 H2O
Fe{3+} + Br{-} = Fe + Br =>
Fe{3+} + 3 Br{-} = Fe + 3 Br
Si + KOH + H2O = K2SiO3 + H2 =>
Si + 2 KOH + H2O = K2SiO3 + 2 H2
LiOH + Be = Li + Be(OH)2 =>
2 LiOH + Be = 2 Li + Be(OH)2
C8H9NO + O2 = CO2 + H2O + N =>
4 C8H9NO + 39 O2 = 32 CO2 + 18 H2O + 4 N
Ti + H3PO4 = Ti3(PO4)2 + H2 =>
3 Ti + 2 H3PO4 = Ti3(PO4)2 + 3 H2
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