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Fe + 2 H3O{+} = Fe{+2} + H2 + 2 H2O
Fe + H2SO4 = Fe(SO4)3 + SO2 + H2O =>
Fe + 6 H2SO4 = Fe(SO4)3 + 3 SO2 + 6 H2O
CaCl2 + MnO2 + H2SO4 = Ca(HSO4)2 + MnSO4 + H2O + Cl2 =>
CaCl2 + MnO2 + 3 H2SO4 = Ca(HSO4)2 + MnSO4 + 2 H2O + Cl2
KHSO4 + NaOH = NaSO4 + KHOH =>
KHSO4 + NaOH = NaSO4 + KHOH
Mg3(PO4)2 + PbS = MgS + Pb3(PO4)2 =>
Mg3(PO4)2 + 3 PbS = 3 MgS + Pb3(PO4)2
Fe + H2SO3 = Fe2(SO3)3 + H2 =>
2 Fe + 3 H2SO3 = Fe2(SO3)3 + 3 H2
AgO + Mn(NO3)2 + HNO3 = AgNO3 + HMnO4 + H2O =>
5 AgO + Mn(NO3)2 + 3 HNO3 = 5 AgNO3 + HMnO4 + H2O
CrO + CO2 = CrCO3 =>
CrO + CO2 = CrCO3
AlPO4(ac) + Mg(s) = Al(s) + Mg3(PO4)2(ac) =>
2 AlPO4(ac) + 3 Mg(s) = 2 Al(s) + Mg3(PO4)2(ac)
Ni(OH)2 + NaOH + Br2 = Ni(OH)3 + NaBr =>
2 Ni(OH)2 + 2 NaOH + Br2 = 2 Ni(OH)3 + 2 NaBr
Zn + AlCl3 + H2O = AlOHCl2 + ZnCl2 + H2 =>
Zn + 2 AlCl3 + 2 H2O = 2 AlOHCl2 + ZnCl2 + H2
NaCl + KBr = KCl + BrNa =>
NaCl + KBr = KCl + BrNa
K2CrO4 + H2O = KOH + H2CrO4 =>
K2CrO4 + 2 H2O = 2 KOH + H2CrO4
CH3OH + O2 = CO2 + H2O =>
2 CH3OH + 3 O2 = 2 CO2 + 4 H2O
HNO4 + Zn = ZnNO4 + H2 =>
2 HNO4 + 2 Zn = 2 ZnNO4 + H2
H2 + Au(NO3)3 = HNO3 + Au =>
3 H2 + 2 Au(NO3)3 = 6 HNO3 + 2 Au
BaCl2 + Na2SO4 = BaSO4 + NaCl =>
BaCl2 + Na2SO4 = BaSO4 + 2 NaCl
CH3OH + O2 = CO2 + H2O =>
2 CH3OH + 3 O2 = 2 CO2 + 4 H2O
Fe + H2SO4 = Fe2(SO4)3 + SO2 + H2O =>
2 Fe + 6 H2SO4 = Fe2(SO4)3 + 3 SO2 + 6 H2O
(OH)2 = OH =>
(OH)2 = 2 OH
Ba(OH)2 + H3PO4 = BaHPO4 + H2O =>
Ba(OH)2 + H3PO4 = BaHPO4 + 2 H2O
Fe2(SO3)3 + KI = Fe2I + K(SO3)3 =>
Fe2(SO3)3 + KI = Fe2I + K(SO3)3
NaOH + Fe3(SO4)3 = Fe(OH)2 + Na2(SO4) =>
6 NaOH + Fe3(SO4)3 = 3 Fe(OH)2 + 3 Na2(SO4)
NO2 + KMnO4 + KOH = KNO3 + K2MnO3 + H2O =>
3 NO2 + KMnO4 + 4 KOH = 3 KNO3 + K2MnO3 + 2 H2O
NH4Cl + KNH2 = KCl + NH3 =>
NH4Cl + KNH2 = KCl + 2 NH3
nitrogen + oxygen = dinitrogentetroxide =>
N2 + 2 O2 = N2O4
Na + CuSO4 = Na2SO4 + Cu =>
2 Na + CuSO4 = Na2SO4 + Cu
AlO + HI = Al(I)2 + H2O =>
AlO + 2 HI = Al(I)2 + H2O
NaBr + Ag = AgBr + Na =>
NaBr + Ag = AgBr + Na
H2S + Fe(OH)2 = FeS + H2O =>
H2S + Fe(OH)2 = FeS + 2 H2O
CaMgO = CaOMg =>
CaMgO = CaOMg
CaS + NaOH = Ca(OH)2 + Na2S =>
CaS + 2 NaOH = Ca(OH)2 + Na2S
C2H4 + O2 = CO2 + H2O =>
C2H4 + 3 O2 = 2 CO2 + 2 H2O
Fe3O4 + Cl2 + HCl = FeCl3 + H2O =>
2 Fe3O4 + Cl2 + 16 HCl = 6 FeCl3 + 8 H2O
C3H60(i) + O2 = CO2 + H2O =>
C3H60(i) + 18 O2 = 3 CO2 + 30 H2O
H2 + Au(NO3)3 = HNO3 + Au =>
3 H2 + 2 Au(NO3)3 = 6 HNO3 + 2 Au
HNO3 + NO2 = HNO2 + N2O5 =>
HNO3 + 2 NO2 = HNO2 + N2O5
K(s) + H2O(aq) = H(g) + KOH(g) =>
K(s) + H2O(aq) = H(g) + KOH(g)
K2S + O2 = K2SO3 =>
2 K2S + 3 O2 = 2 K2SO3
K4[Fe(Cn)6] + FeCl3 = K4Cl3 + Fe[Fe(Cn)6] =>
K4[Fe(Cn)6] + FeCl3 = K4Cl3 + Fe[Fe(Cn)6]
Al2(SO4)3 + Na(HCO3)2 = Al(OH)3 + NaSO4 + CO2 =>
Al2(SO4)3 + 3 Na(HCO3)2 = 2 Al(OH)3 + 3 NaSO4 + 6 CO2
Cr2O5 = Cr2O3 + O2 =>
Cr2O5 = Cr2O3 + O2
H3PO4 + AgCl = H3Cl + AgPO4 =>
H3PO4 + AgCl = H3Cl + AgPO4
CH3COOH + Zn = Zn(CH3COO)3 + H2 =>
6 CH3COOH + 2 Zn = 2 Zn(CH3COO)3 + 3 H2
CaO + MgCl2 = MgO + CaCl2 =>
CaO + MgCl2 = MgO + CaCl2
C3H6Br2 + NaOH = C3H4 + NaBr + H2O =>
C3H6Br2 + 2 NaOH = C3H4 + 2 NaBr + 2 H2O
As2O3 + KOH = KAsO2 + H2O =>
As2O3 + 2 KOH = 2 KAsO2 + H2O
HNO4 + Zn = ZnNO4 + H2 =>
2 HNO4 + 2 Zn = 2 ZnNO4 + H2
C8H18O + O2 = CO2 + H2O =>
C8H18O + 12 O2 = 8 CO2 + 9 H2O
Na3(Cu(S2O3)2) + H2O = H2SO4 + Cu2S + Na2S2O3 =>
2 Na3(Cu(S2O3)2) + H2O = H2SO4 + Cu2S + 3 Na2S2O3
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