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2 Eu + 2 HF = 2 EuF + H2
CuO + H2SO4 = Cu(HSO4)2 + H2O =>
CuO + 2 H2SO4 = Cu(HSO4)2 + H2O
Al2(SO4)3 + Mg = Al2 + MgSO4 =>
Al2(SO4)3 + 3 Mg = Al2 + 3 MgSO4
HCOOC2H5 + Ag(NH3)2OH = Ag + CO2 + H2O + NH3 =>
HCOOC2H5 + 14 Ag(NH3)2OH = 14 Ag + 3 CO2 + 10 H2O + 28 NH3
Na(s) + H2O(l) = H2(g) + Na(OH)(aq) =>
2 Na(s) + 2 H2O(l) = H2(g) + 2 Na(OH)(aq)
KClO4 + Cr(ClO4)3 + I2 + H2O = K2Cr2O7 + HI + HClO4 =>
2 KClO4 + 2 Cr(ClO4)3 + 3 I2 + 7 H2O = K2Cr2O7 + 6 HI + 8 HClO4
MgO + KOH = MgOH2 + KO =>
MgO + 2 KOH = MgOH2 + 2 KO
AgNO3 + Li = LiNO3 + Ag =>
AgNO3 + Li = LiNO3 + Ag
Fe(NO3)2 + NO = Fe + NO2 =>
Fe(NO3)2 + 2 NO = Fe + 4 NO2
Cr + CuSO4 = Cr(SO4)3 + Cu =>
Cr + 3 CuSO4 = Cr(SO4)3 + 3 Cu
KClO3 + Al + HNO3 = KCl + Al(NO3)3 + H2O =>
KClO3 + 2 Al + 6 HNO3 = KCl + 2 Al(NO3)3 + 3 H2O
Pb(NO3)2 + Mg(SO4) = Mg(NO3)2 + PbSO4 =>
Pb(NO3)2 + Mg(SO4) = Mg(NO3)2 + PbSO4
MgS + Fe(OH)3 = Mg(OH)2 + Fe2S3 =>
3 MgS + 2 Fe(OH)3 = 3 Mg(OH)2 + Fe2S3
K2SO4(aq) + CuCl2(aq) = KCl(aq) + CuSO4(s) =>
K2SO4(aq) + CuCl2(aq) = 2 KCl(aq) + CuSO4(s)
MnO2 + KNO3 + HNO3 + Cl2 = KClO3 + Mn(NO3)3 + H2O =>
10 MnO2 + 2 KNO3 + 28 HNO3 + Cl2 = 2 KClO3 + 10 Mn(NO3)3 + 14 H2O
HS + HCl = H2 + SCl =>
HS + HCl = H2 + SCl
HF(aq) + NaOH(aq) = NaF + H2O =>
HF(aq) + NaOH(aq) = NaF + H2O
NH4OH + Mn = Mn(OH)2 + NH4 =>
2 NH4OH + Mn = Mn(OH)2 + 2 NH4
ZnSO3 + HClO4 = SO2 + H2O + Zn(ClO4)2 =>
ZnSO3 + 2 HClO4 = SO2 + H2O + Zn(ClO4)2
KMnO4 + KCl + H2O = MnO2 + Cl2 + KOH =>
2 KMnO4 + 6 KCl + 4 H2O = 2 MnO2 + 3 Cl2 + 8 KOH
(NH4)3PO4(aq) + Ni(NO3)2(aq) = Ni3(PO4)2(s) + NH4NO3(aq) =>
2(NH4)3PO4(aq) + 3 Ni(NO3)2(aq) = Ni3(PO4)2(s) + 6 NH4NO3(aq)
(Ca(HCO3)2) = CO2 + H2O + CaCO3 =>
(Ca(HCO3)2) = CO2 + H2O + CaCO3
SiO2 + NaOH + H2O = Na2SiO3*9H2O =>
SiO2 + 2 NaOH + 8 H2O = Na2SiO3*9H2O
K2O + H2O = K2OH + O2 =>
4 K2O + 2 H2O = 4 K2OH + O2
H2S + As(NO3)5 = HNO3 + As2S5 =>
5 H2S + 2 As(NO3)5 = 10 HNO3 + As2S5
N2O + KClO + KOH = KNO2 + H2O + KCl =>
N2O + 2 KClO + 2 KOH = 2 KNO2 + H2O + 2 KCl
Na2SO4 + NH4NO3 = NaNO3 + (NH4)2SO4 =>
Na2SO4 + 2 NH4NO3 = 2 NaNO3 + (NH4)2SO4
C7H16 + O2 = H2 + CO =>
2 C7H16 + 7 O2 = 16 H2 + 14 CO
HCl + Ca = HCa + Cl =>
HCl + Ca = HCa + Cl
Al2Cl6 + H2O = Al2Cl5OH + HCl =>
Al2Cl6 + H2O = Al2Cl5OH + HCl
KI + KCIO3 + H2SO4 = KCI + I2 + K2SO4 + H2O =>
6 KI + KCIO3 + 3 H2SO4 = KCI + 3 I2 + 3 K2SO4 + 3 H2O
O3 + NaOH = O3Na2 + H2O =>
2 O3 + 6 NaOH = 3 O3Na2 + 3 H2O
O + *C = CO =>
O + *C = CO
C4H10 + O2 = CO2 + H2O =>
2 C4H10 + 13 O2 = 8 CO2 + 10 H2O
C9H10O + Br2 = C9H9BrO + HBr =>
C9H10O + Br2 = C9H9BrO + HBr
CaI2 + NaCl = CaCl2 + NaI =>
CaI2 + 2 NaCl = CaCl2 + 2 NaI
Br2 + OH{-} = BrO3{-} + Br{-} + H2O =>
3 Br2 + 6 OH{-} = BrO3{-} + 5 Br{-} + 3 H2O
N2H4 + CuCl2 + NaOH = N2 + Cu + NaCl + H2O =>
N2H4 + 2 CuCl2 + 4 NaOH = N2 + 2 Cu + 4 NaCl + 4 H2O
NH4OH + Ca(OCl)2 = CaCl2 + NH2NH2 + H2O =>
4 NH4OH + Ca(OCl)2 = CaCl2 + 2 NH2NH2 + 6 H2O
AsH3 + Br2 + H2O = H3AsO4 + HBr =>
AsH3 + 4 Br2 + 4 H2O = H3AsO4 + 8 HBr
KrF6 + H2O = Kr + O2 + HF =>
2 KrF6 + 6 H2O = 2 Kr + 3 O2 + 12 HF
C4H9OH + O2 = CO2 + H2O(g) =>
C4H9OH + 6 O2 = 4 CO2 + 5 H2O(g)
Cr2O3 + CO = Cr4C + O2 =>
4 Cr2O3 + 2 CO = 2 Cr4C + 7 O2
Fe(CrO2)2 + Cl2 + K2CO3 = FeCl3 + KCrO4 + KCl + CO2 =>
2 Fe(CrO2)2 + 9 Cl2 + 8 K2CO3 = 2 FeCl3 + 4 KCrO4 + 12 KCl + 8 CO2
SiO2(aq) + HCl(aq) = H2O(l) + SiCl4(aq) =>
SiO2(aq) + 4 HCl(aq) = 2 H2O(l) + SiCl4(aq)
Fe + Cl2 = FeCl3 =>
2 Fe + 3 Cl2 = 2 FeCl3
Ag(NO3)3 = Ag + NO2 + O2 =>
2 Ag(NO3)3 = 2 Ag + 6 NO2 + 3 O2
C6H12O6 = C10H18O + H2O + CO2 =>
7 C6H12O6 = 3 C10H18O + 15 H2O + 12 CO2
Br{-}1 + BrO3{-}1 + H{+} = Br2 + H2O =>
5 Br{-}1 + BrO3{-}1 + 6 H{+} = 3 Br2 + 3 H2O
C4H11N + CHCl3 + KOH = C5H9N + KCl + H2O =>
C4H11N + CHCl3 + 3 KOH = C5H9N + 3 KCl + 3 H2O
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