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2 FeS2 + 2 H2O + 7 O2 = 2 FeSO4 + 2 H2SO4
H2 + F2 = HF =>
H2 + F2 = 2 HF
NaOH + KOH = NaK + OH =>
NaOH + KOH = NaK + 2 OH
Zn + CuSO4 = ZnSO4 + Cu =>
Zn + CuSO4 = ZnSO4 + Cu
MNO2 + KCLO3 + KOH = K2MNO4 + KCL + H2O =>
3 MNO2 + KCLO3 + 6 KOH = 3 K2MNO4 + KCL + 3 H2O
C + H2SO4 = CO2 + SO2 + H2O =>
C + 2 H2SO4 = CO2 + 2 SO2 + 2 H2O
Cr2O3 + KNO3 + KOH = K2CrO4 + KNO2 + H2O =>
Cr2O3 + 3 KNO3 + 4 KOH = 2 K2CrO4 + 3 KNO2 + 2 H2O
H2SO4 + NaOH = H2O + Na2SO4 =>
H2SO4 + 2 NaOH = 2 H2O + Na2SO4
Na + I2 = NaI =>
2 Na + I2 = 2 NaI
C3H8O + O2 = CO2 + H20 =>
10 C3H8O + 25 O2 = 30 CO2 + 4 H20
C + O2 = CO =>
2 C + O2 = 2 CO
Na + H2O = NaOH + H2 =>
2 Na + 2 H2O = 2 NaOH + H2
Ag2CO3 = Ag2O + CO2 =>
Ag2CO3 = Ag2O + CO2
C2H2 + O2 = CO2 + H2O =>
2 C2H2 + 5 O2 = 4 CO2 + 2 H2O
H2NCH3COOH + O2 = CO2 + H2O + NH3 =>
4 H2NCH3COOH + 7 O2 = 8 CO2 + 6 H2O + 4 NH3
(NH4)2SO4 + KOH = NH3 + H2O + K2SO4 =>
(NH4)2SO4 + 2 KOH = 2 NH3 + 2 H2O + K2SO4
Al + Fe2O3 = Al2O3 + Fe =>
2 Al + Fe2O3 = Al2O3 + 2 Fe
S8 + AsF5 = S16(AsF6)2 + AsF3 =>
2 S8 + 3 AsF5 = S16(AsF6)2 + AsF3
ClO3{-} + SO2 + H{+} = ClO2 + HSO4{-} =>
2 ClO3{-} + SO2 + H{+} = 2 ClO2 + HSO4{-}
(Cr){+3} + (ClO2){-} + (OH){-} = (Cr2O7){-2} + (Cl){-} + H2O =>
4(Cr){+3} + 3(ClO2){-} + 16(OH){-} = 2(Cr2O7){-2} + 3(Cl){-} + 8 H2O
C3H8O + O2 = CO2 + H2O =>
2 C3H8O + 9 O2 = 6 CO2 + 8 H2O
AgO = Ag + O2 =>
2 AgO = 2 Ag + O2
Mg + HCl = MgCl2 + H2 =>
Mg + 2 HCl = MgCl2 + H2
KOH + N2O5 = KNO3 + H2O =>
2 KOH + N2O5 = 2 KNO3 + H2O
H2O + TaO = Ta(OH)2 =>
H2O + TaO = Ta(OH)2
Al2O + CH3COOH = Al(CH3COO) + H2O =>
Al2O + 2 CH3COOH = 2 Al(CH3COO) + H2O
Fe2O3 + HCl = FeCl3 + H2O =>
Fe2O3 + 6 HCl = 2 FeCl3 + 3 H2O
Na2 + Cl = Na2Cl =>
Na2 + Cl = Na2Cl
H2S + Al(OH)3 = Al2S3 + H2O =>
3 H2S + 2 Al(OH)3 = Al2S3 + 6 H2O
Zn(OH)2 + Ch3COOH = Zn(Ch3COO)2 + H2O =>
Zn(OH)2 + 2 Ch3COOH = Zn(Ch3COO)2 + 2 H2O
KI + Br2 = KBr + I2 =>
2 KI + Br2 = 2 KBr + I2
Mg + H3PO4 = Mg3(PO4)2 + H2 =>
3 Mg + 2 H3PO4 = Mg3(PO4)2 + 3 H2
NH3 + O2 = NO + H2O =>
4 NH3 + 5 O2 = 4 NO + 6 H2O
HCl + KMnO4 = Cl2 + KCl + MnCl2 + H2O =>
16 HCl + 2 KMnO4 = 5 Cl2 + 2 KCl + 2 MnCl2 + 8 H2O
C6H5CH3 + [O] = C7H6O2 + H2O =>
C6H5CH3 + 3[O] = C7H6O2 + H2O
H2SO4 + NaOH = Na2SO4 + H2O =>
H2SO4 + 2 NaOH = Na2SO4 + 2 H2O
As2S3 + NO3{-} + H{+} + H2O = NO + SO4{2-} + H3AsO4 =>
3 As2S3 + 28 NO3{-} + 10 H{+} + 4 H2O = 28 NO + 9 SO4{2-} + 6 H3AsO4
Mn(OH)2 + Na2O2 = Na2MnO4 + NaOH =>
Mn(OH)2 + 2 Na2O2 = Na2MnO4 + 2 NaOH
CO(g) + O2(g) = CO2(g) =>
2 CO(g) + O2(g) = 2 CO2(g)
Fe2(SO4)3 + NaOH = Fe(OH)3 + Na2SO4 =>
Fe2(SO4)3 + 6 NaOH = 2 Fe(OH)3 + 3 Na2SO4
Mn(OH)2 + Na2O2 = Na2MnO4 + NaOH =>
Mn(OH)2 + 2 Na2O2 = Na2MnO4 + 2 NaOH
PbS + HNO3 = S + Pb(NO3)2 + NO + H2O =>
3 PbS + 8 HNO3 = 3 S + 3 Pb(NO3)2 + 2 NO + 4 H2O
Mg3(PO4)2 + H2SO4 = MgSO4 + H3PO4 =>
Mg3(PO4)2 + 3 H2SO4 = 3 MgSO4 + 2 H3PO4
Li + H2O = LiOH + H2 =>
2 Li + 2 H2O = 2 LiOH + H2
K2Cr2O7 + C2H6OH + H2SO4 = Cr2(SO4)3 + K2SO4 + C2H4O2 + H20 =>
20 K2Cr2O7 + 140 C2H6OH + 80 H2SO4 = 20 Cr2(SO4)3 + 20 K2SO4 + 140 C2H4O2 + 29 H20
NaBr + AgNO3 = AgBr + NaNO3 =>
NaBr + AgNO3 = AgBr + NaNO3
C4H9OH + Na = C4H9ONa + H2 =>
2 C4H9OH + 2 Na = 2 C4H9ONa + H2
Mg + HCl = MgCl2 + H2 =>
Mg + 2 HCl = MgCl2 + H2
BaCl2 + H3PO4 = Ba3(PO4)2 + HCl =>
3 BaCl2 + 2 H3PO4 = Ba3(PO4)2 + 6 HCl
Li + H2O = LiOH + H2 =>
2 Li + 2 H2O = 2 LiOH + H2
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