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2 CH3Na + H2O = 2 CH4 + Na2O
PbS + PbO = Pb + SO2 =>
PbS + 2 PbO = 3 Pb + SO2
CrSO4 + H2SO4 = Cr2(SO4)3 + H2 =>
2 CrSO4 + H2SO4 = Cr2(SO4)3 + H2
CrCl + KClO + KOH = K2CrO4 + KCl + H2O =>
2 CrCl + 5 KClO + 6 KOH = 2 K2CrO4 + 7 KCl + 3 H2O
PbO + Mn = MnO4 + Pb =>
4 PbO + Mn = MnO4 + 4 Pb
K + Ca(HCO3)2 = KHCO3 + Ca =>
2 K + Ca(HCO3)2 = 2 KHCO3 + Ca
Ca(H2PO4)2 + NaOH = Ca3(PO4)2 + Na3PO4 + H2O =>
3 Ca(H2PO4)2 + 12 NaOH = Ca3(PO4)2 + 4 Na3PO4 + 12 H2O
CaSO4 + KOH = K2SO4 + Ca(OH)2 =>
CaSO4 + 2 KOH = K2SO4 + Ca(OH)2
Zn3(PO4)2 + AgNO3 = Zn(NO3)2 + Ag3(PO4) =>
Zn3(PO4)2 + 6 AgNO3 = 3 Zn(NO3)2 + 2 Ag3(PO4)
(NH4)2X + Ca(OH)2 = CaX + NH3 + H2O =>
(NH4)2X + Ca(OH)2 = CaX + 2 NH3 + 2 H2O
Ag2Cr2O7 + AgBr + H2SiO3 = Cr2(SiO3)3 + Ag2SiO3 + Br2 + H2O =>
Ag2Cr2O7 + 6 AgBr + 7 H2SiO3 = Cr2(SiO3)3 + 4 Ag2SiO3 + 3 Br2 + 7 H2O
FeOHCl2 + H2SO4 = Fe2(SO4)3 + FeCl3 + H2O =>
6 FeOHCl2 + 3 H2SO4 = Fe2(SO4)3 + 4 FeCl3 + 6 H2O
Pb(OH)4 + NaOH = Na2Pb(OH)6 =>
Pb(OH)4 + 2 NaOH = Na2Pb(OH)6
Fe + H2O = H2 + Fe3O4 =>
3 Fe + 4 H2O = 4 H2 + Fe3O4
Na2CO3 + HCl = NaCl + H2O + CO2 =>
Na2CO3 + 2 HCl = 2 NaCl + H2O + CO2
Pb(OH)4 + NaOH = Na2Pb(OH)6 =>
Pb(OH)4 + 2 NaOH = Na2Pb(OH)6
FeCl3 + MnCl2 + KCl + H2O = FeCl2 + KMnO4 + HCl =>
5 FeCl3 + MnCl2 + KCl + 4 H2O = 5 FeCl2 + KMnO4 + 8 HCl
CdSO4 + NaOH = Cd(OH)2 + Na2SO4 =>
CdSO4 + 2 NaOH = Cd(OH)2 + Na2SO4
Ca(ClO)2 + H2SO4 = Cl2 + CaSO4 + H2O + O2 =>
2 Ca(ClO)2 + 2 H2SO4 = 2 Cl2 + 2 CaSO4 + 2 H2O + O2
K + H2O = KOH + H2 =>
2 K + 2 H2O = 2 KOH + H2
H3C6H507 + NaHCO3 = CO2 + H2O + Na3C6H507 =>
H3C6H507 + 3 NaHCO3 = 3 CO2 + 3 H2O + Na3C6H507
C3H8O3 + Na = C3H6O3Na3 + H2 =>
C3H8O3 + 3 Na = C3H6O3Na3 + H2
SO2 + NO2 + H2O = H2SO4 + HNO2 =>
SO2 + 2 NO2 + 2 H2O = H2SO4 + 2 HNO2
HNO3 + CoCO3 = H2CO3 + Co(NO3)2 =>
2 HNO3 + CoCO3 = H2CO3 + Co(NO3)2
CrO4{2-} + SO2 + H2O = Cr{3+} + SO4{2-} + OH{-} =>
2 CrO4{2-} + 3 SO2 + 2 H2O = 2 Cr{3+} + 3 SO4{2-} + 4 OH{-}
CsNO3 + Mg(ClO4)2 = CsClO4 + Mg(NO3)2 =>
2 CsNO3 + Mg(ClO4)2 = 2 CsClO4 + Mg(NO3)2
Pb(NO3)2 + SO4 = PbSO4 + NO3 =>
Pb(NO3)2 + SO4 = PbSO4 + 2 NO3
AgC2H3O2(aq) + CuSO4(aq) = Ag2SO4(s) + Cu(C2H3O2)2(aq) =>
2 AgC2H3O2(aq) + CuSO4(aq) = Ag2SO4(s) + Cu(C2H3O2)2(aq)
Ba(NO3)2 + Li2S = BaS + LiNO3 =>
Ba(NO3)2 + Li2S = BaS + 2 LiNO3
K + Mg(NO2)2 = Mg + KNO2 =>
2 K + Mg(NO2)2 = Mg + 2 KNO2
Sn{2+} + Cr2O7{2+} + H3O{+} = Sn{4+} + Cr{3+} + H2O =>
5 Sn{2+} + Cr2O7{2+} + 14 H3O{+} = 5 Sn{4+} + 2 Cr{3+} + 21 H2O
Cu + S3 = CuS =>
3 Cu + S3 = 3 CuS
Al + S + H2O = Al(OH)3 + H2S =>
2 Al + 3 S + 6 H2O = 2 Al(OH)3 + 3 H2S
C3H8O3 + Na = C3H6O3Na3 + H2 =>
C3H8O3 + 3 Na = C3H6O3Na3 + H2
Sb2O3 = Sb + O2 =>
2 Sb2O3 = 4 Sb + 3 O2
Ca(H2PO4)2 + NH4OH = (NH4)2HPO4 + CaO + H2O =>
Ca(H2PO4)2 + 4 NH4OH = 2(NH4)2HPO4 + CaO + 3 H2O
FeC + HCl = FeCl2 + H2 + C =>
FeC + 2 HCl = FeCl2 + H2 + C
BI(NO3)2 + K2SnO2 + KOH = BI + K2SnO3 + KNO3 + H2O =>
BI(NO3)2 + K2SnO2 + 2 KOH = BI + K2SnO3 + 2 KNO3 + H2O
BrO3 + NO2 = Br2 + NO3 =>
2 BrO3 + 6 NO2 = Br2 + 6 NO3
C4H10 + O2 = H2CO3 + H2 =>
C4H10 + 6 O2 = 4 H2CO3 + H2
FeCl3 + SNCl2 = FeCl2 + SNCl4 =>
2 FeCl3 + SNCl2 = 2 FeCl2 + SNCl4
Al + S8 = Al2S3 =>
16 Al + 3 S8 = 8 Al2S3
Ni(NO3)2 + NaOH = NiOH + Na(NO3)2 =>
Ni(NO3)2 + NaOH = NiOH + Na(NO3)2
Fe3O4 + HCl = FeCl2 + H2O + FeCl3 =>
Fe3O4 + 8 HCl = FeCl2 + 4 H2O + 2 FeCl3
MgSO4*3H2O = Mg + SO4*3H2O =>
MgSO4*3H2O = Mg + SO4*3H2O
CuO + CaCl2 = CuCl2 + CaO =>
CuO + CaCl2 = CuCl2 + CaO
Al(CH3COO)3 + NH4OH = Al(OH)3 + NH4CH3COO =>
Al(CH3COO)3 + 3 NH4OH = Al(OH)3 + 3 NH4CH3COO
ZnSO4 + K3Fe(CN)6 + KI = K2Zn3[Fe(CN)6]2(ppt) + K2SO4 + I2 =>
3 ZnSO4 + 2 K3Fe(CN)6 + 2 KI = K2Zn3[Fe(CN)6]2(ppt) + 3 K2SO4 + I2
Co2O3 + HCl + Na2S2O3 = CoCl2 + NaCl + Co2(SO4)3 + H2O =>
14 Co2O3 + 54 HCl + 3 Na2S2O3 = 24 CoCl2 + 6 NaCl + 2 Co2(SO4)3 + 27 H2O
NH2OH + Zn + HCl = NH3 + ZnCl2 + H2O =>
NH2OH + Zn + 2 HCl = NH3 + ZnCl2 + H2O
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