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Pb(NO2)2 + 2 KI = PbI2 + 2 KNO2
HCl + Na2CrO4 = NaCl + H2CrO4 =>
2 HCl + Na2CrO4 = 2 NaCl + H2CrO4
NaOH = Na + O2 + H2 =>
2 NaOH = 2 Na + O2 + H2
SnF2 + Na3PO4 = Sn3(PO4)2 + NaF =>
3 SnF2 + 2 Na3PO4 = Sn3(PO4)2 + 6 NaF
C + O2 = CO = =>
2 C + O2 = 2 CO
H2SO4 = H{+} + HSO4{-} =>
H2SO4 = H{+} + HSO4{-}
CH4 + O2 = CO2 + H2O =>
CH4 + 2 O2 = CO2 + 2 H2O
La200O300 + Ni100O100 + Fe200O300 + Ca100C100O300 = La60Ca40Fe90Ni10O300 + C100 + O200 =>
12 La200O300 + 4 Ni100O100 + 18 Fe200O300 + 16 Ca100C100O300 = 40 La60Ca40Fe90Ni10O300 + 16 C100 + 11 O200
KNO3 + C = K2CO3 + CO2 + N3 =>
12 KNO3 + 15 C = 6 K2CO3 + 9 CO2 + 4 N3
CaCl2 + Na2SO4 = CaSO4 + NaCl = =>
CaCl2 + Na2SO4 = CaSO4 + 2 NaCl
Hg(NO3)2 + NH4OH = NH4NO3 + Hg(OH)2 =>
Hg(NO3)2 + 2 NH4OH = 2 NH4NO3 + Hg(OH)2
NaCl + KH2SbO4 = Na2H2Sb2O7 + KCl + H2O =>
2 NaCl + 2 KH2SbO4 = Na2H2Sb2O7 + 2 KCl + H2O
Mn(OH)4 + KOH = H2O + K2MnO3 =>
Mn(OH)4 + 2 KOH = 3 H2O + K2MnO3
NaHC03 + HCl = NaCl + H2C03 =>
NaHC03 + HCl = NaCl + H2C03
Fe3 + O4 = FeO2 =>
2 Fe3 + 3 O4 = 6 FeO2
NiSO4 + KNO3 = K2(SO4) + Ni(NO3)2 =>
NiSO4 + 2 KNO3 = K2(SO4) + Ni(NO3)2
CO2 + H2O = C8H17O + O2 =>
32 CO2 + 34 H2O = 4 C8H17O + 47 O2
CaCl2*2H2O + K2CO3 = CaCO3 + KCl + H2O =>
CaCl2*2H2O + K2CO3 = CaCO3 + 2 KCl + 2 H2O
HI + H2O = H3O + IO =>
HI + 4 H2O = 3 H3O + IO
C6H12(g) + O2(g) = H2O(g) + CO2(g) =>
C6H12(g) + 9 O2(g) = 6 H2O(g) + 6 CO2(g)
Zn + WO3 = W + ZnO =>
3 Zn + WO3 = W + 3 ZnO
Zn(OH)2 + AgNO3 = HNO3 + Ag2ZnO2 =>
Zn(OH)2 + 2 AgNO3 = 2 HNO3 + Ag2ZnO2
Al(OH)3 + HCl = AlCl3 + H2O =>
Al(OH)3 + 3 HCl = AlCl3 + 3 H2O
K4Fe(CN)6 + H2SO4 + H2O = K2SO4 + FeSO4 + (NH4)2SO4 + CO =>
K4Fe(CN)6 + 6 H2SO4 + 6 H2O = 2 K2SO4 + FeSO4 + 3(NH4)2SO4 + 6 CO
HCl + K2SO4 = KCl + H2SO4 =>
2 HCl + K2SO4 = 2 KCl + H2SO4
CaCO3 + HNO3 = Ca(NO3)2H2CO3 =>
CaCO3 + 2 HNO3 = Ca(NO3)2H2CO3
KMnO4 + Li2SO3 + H2O = MnO2 + KOH + Li2SO4 =>
2 KMnO4 + 3 Li2SO3 + H2O = 2 MnO2 + 2 KOH + 3 Li2SO4
AgNO3(aq) + NaCl(aq) = AgCl(s) + NaNO3(aq) =>
AgNO3(aq) + NaCl(aq) = AgCl(s) + NaNO3(aq)
ZnSO4 + NaOH = Na2(Zn(OH)4) + Na2SO4 =>
ZnSO4 + 4 NaOH = Na2(Zn(OH)4) + Na2SO4
H2SO4 + HI + K2Cr2O7 = K2SO4 + Cr2(SO4)3 + I2 + H2O =>
4 H2SO4 + 6 HI + K2Cr2O7 = K2SO4 + Cr2(SO4)3 + 3 I2 + 7 H2O
C10H10Fe + C4H6O3 + H = C10H10C2OH3Fe + CH3COOH =>
C10H10Fe + C4H6O3 + H = C10H10C2OH3Fe + CH3COOH
Cu(NO3)2(aq) + (NH4)2S(aq) = CuS(s) + NH4NO3(aq) =>
Cu(NO3)2(aq) + (NH4)2S(aq) = CuS(s) + 2 NH4NO3(aq)
AgNO3 + CH2Cl2 = AgCl + CH2(NO3)2 =>
2 AgNO3 + CH2Cl2 = 2 AgCl + CH2(NO3)2
Fe + S + HCl = FeSHCl =>
Fe + S + HCl = FeSHCl
NaI + H2SO4 = H2O + H2S + I2 + Na2SO4 =>
8 NaI + 5 H2SO4 = 4 H2O + H2S + 4 I2 + 4 Na2SO4
CaClO2 + KCl = CaCl + KClO2 =>
CaClO2 + KCl = CaCl + KClO2
CN + MnO4 = CNO + MnO2 =>
2 CN + MnO4 = 2 CNO + MnO2
NH4(g) + O2(g) = N2(g) + H2O(g) =>
2 NH4(g) + 2 O2(g) = N2(g) + 4 H2O(g)
Fe + NaSO4 = Fe2(SO4)3 + Na =>
2 Fe + 3 NaSO4 = Fe2(SO4)3 + 3 Na
HClO2 + KOH = H2O + KClO2 =>
HClO2 + KOH = H2O + KClO2
NH4(g) + O2(g) = NO(g) + H2O(g) =>
2 NH4(g) + 3 O2(g) = 2 NO(g) + 4 H2O(g)
Fe + O2 = Fe2O3 =>
4 Fe + 3 O2 = 2 Fe2O3
FeBrMg = FeMgBr =>
FeBrMg = FeMgBr
As + O2 = As2O5As2O5 =>
4 As + 5 O2 = As2O5As2O5
Ca3P2 + H2SO4 = CaSO4 + H3P =>
Ca3P2 + 3 H2SO4 = 3 CaSO4 + 2 H3P
Na2NH + H2O = NH3 + NaOH =>
Na2NH + 2 H2O = NH3 + 2 NaOH
Na2SO3 + HCl = NaCl + H2O(l) + SO2 =>
Na2SO3 + 2 HCl = 2 NaCl + H2O(l) + SO2
Cu(OH)2 + H2SiO3 = CuSiO3 + H2O =>
Cu(OH)2 + H2SiO3 = CuSiO3 + 2 H2O
(NH4)2Fe(SO4)2 + HNO3 = Fe2(SO4)3 + NO + H2O + (NH4)2SO4 =>
2(NH4)2Fe(SO4)2 + 4 HNO3 = Fe2(SO4)3 + 6 NO + 6 H2O + (NH4)2SO4
NaClO4 + Na2S + H2O = NaOH + SO2 + NaCl =>
3 NaClO4 + 4 Na2S + 4 H2O = 8 NaOH + 4 SO2 + 3 NaCl
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