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4 FeS2 + 11 O2 = 2 Fe2O3 + 8 SO2
KHCO3 + H2O = K + H2CO3 + OH =>
KHCO3 + H2O = K + H2CO3 + OH
SF4 + H2O = SO2 + HF =>
SF4 + 2 H2O = SO2 + 4 HF
Na + HCl = NaCl + H =>
Na + HCl = NaCl + H
NaNO3 + H2SO4 = Na2SO4 + HNO3 =>
2 NaNO3 + H2SO4 = Na2SO4 + 2 HNO3
Fe2S3 + HCl = FeCl3 + H2S =>
Fe2S3 + 6 HCl = 2 FeCl3 + 3 H2S
Al + V2O5 = Al2O3 + V =>
10 Al + 3 V2O5 = 5 Al2O3 + 6 V
PbS + O2 = PbO + SO2 =>
2 PbS + 3 O2 = 2 PbO + 2 SO2
Na + HCl = NaCl + H =>
Na + HCl = NaCl + H
K + Br2 = KBr =>
2 K + Br2 = 2 KBr
NH4ClO4 = N2 + Cl2 + O2 + H2O =>
2 NH4ClO4 = N2 + Cl2 + 2 O2 + 4 H2O
HBr + K = KBr + H2 =>
2 HBr + 2 K = 2 KBr + H2
Mg + H2O = H2 + Mg(OH)2 =>
Mg + 2 H2O = H2 + Mg(OH)2
H2CO3 = H2O + CO2 =>
H2CO3 = H2O + CO2
CH3CH2CH2Cl + Na = CH3CH2CH2CH2CH2CH3 + NaCl =>
2 CH3CH2CH2Cl + 2 Na = CH3CH2CH2CH2CH2CH3 + 2 NaCl
H2S + O2 = H2O + SO2 =>
2 H2S + 3 O2 = 2 H2O + 2 SO2
Br2 + KI = KBr + I =>
Br2 + 2 KI = 2 KBr + 2 I
CS2 + NH3 = H2S + NH4SCN =>
CS2 + 2 NH3 = H2S + NH4SCN
Na2CO3 + HCl = NaCl + H2O + CO2 =>
Na2CO3 + 2 HCl = 2 NaCl + H2O + CO2
Cs2O + H2O = CsOH =>
Cs2O + H2O = 2 CsOH
H2O + CO2 = H2CO3 =>
H2O + CO2 = H2CO3
C4H8 + O2 = CO2 + H2O =>
C4H8 + 6 O2 = 4 CO2 + 4 H2O
Al + HCl = AlCl3 + H2 =>
2 Al + 6 HCl = 2 AlCl3 + 3 H2
Cu + H2SO4 = CuSO4 + SO2 + H2O =>
Cu + 2 H2SO4 = CuSO4 + SO2 + 2 H2O
Al + HCl = AlCl2 + H2 =>
Al + 2 HCl = AlCl2 + H2
CaBr2 + Ag = AgBr + Ca =>
CaBr2 + 2 Ag = 2 AgBr + Ca
PbO = Pb + O2 =>
2 PbO = 2 Pb + O2
Fe2O3 + Mg = MgO + Fe =>
Fe2O3 + 3 Mg = 3 MgO + 2 Fe
AgNO3 + BaCl2 = AgCl + Ba(NO3)2 =>
2 AgNO3 + BaCl2 = 2 AgCl + Ba(NO3)2
Ca + H2SO4 = S + CaSO4 + H2O =>
3 Ca + 4 H2SO4 = S + 3 CaSO4 + 4 H2O
K + Br2 = KBr =>
2 K + Br2 = 2 KBr
Cr + SnCi = CrCi3 + Sn =>
Cr + 3 SnCi = CrCi3 + 3 Sn
KMnO4 + AgNO3 = AgMnO4 + KNO3 =>
KMnO4 + AgNO3 = AgMnO4 + KNO3
Ca(OH)2 + H3PO4 = H2O + Ca3(PO4)2 =>
3 Ca(OH)2 + 2 H3PO4 = 6 H2O + Ca3(PO4)2
H3PO3 + CuO = Cu3(PO3)2 + H2O =>
2 H3PO3 + 3 CuO = Cu3(PO3)2 + 3 H2O
HPO4 + KOH = H2O + KPO4 =>
HPO4 + KOH = H2O + KPO4
(NH4)2CO3 + CaCl2 = NH4Cl + CaCO3 =>
(NH4)2CO3 + CaCl2 = 2 NH4Cl + CaCO3
Al + CuSO4 = Cu + Al2(SO4)3 =>
2 Al + 3 CuSO4 = 3 Cu + Al2(SO4)3
C7H16 + O2 = CO2 + H2O =>
C7H16 + 11 O2 = 7 CO2 + 8 H2O
Zn + NO2{-}{+} + H2O = [Zn(OH)4]2{-} + NH3 + OH{-} =>
12 Zn + 7 NO2{-}{+} + 35 H2O = 6[Zn(OH)4]2{-} + 7 NH3 + OH{-}
FeO + CO = Fe + CO2 =>
FeO + CO = Fe + CO2
P2O5 + H2O = HPO3 =>
P2O5 + H2O = 2 HPO3
FeCl3 + Na2SO3 = Fe2(SO3)3 + NaCl =>
2 FeCl3 + 3 Na2SO3 = Fe2(SO3)3 + 6 NaCl
FeBr3 + Na2CO3 + H2O = NaBr + Fe(OH)3 + H2CO3 =>
2 FeBr3 + 3 Na2CO3 + 6 H2O = 6 NaBr + 2 Fe(OH)3 + 3 H2CO3
KOH + H2SO4 = K2SO4 + H2O =>
2 KOH + H2SO4 = K2SO4 + 2 H2O
C + H2O = CO + H2 =>
C + H2O = CO + H2
Ca(ClO)2 + HCl = CaCl2 + H2O + Cl2 =>
Ca(ClO)2 + 4 HCl = CaCl2 + 2 H2O + 2 Cl2
CO + H2 = H2O + CH4 =>
CO + 3 H2 = H2O + CH4
NH4OH + HBR = NH4BR + H2O =>
NH4OH + HBR = NH4BR + H2O
Na2SiF6 + Na = Si + NaF =>
Na2SiF6 + 4 Na = Si + 6 NaF
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