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2 Fe(OH)2 + 4 NaOH = 2 Fe(OH)3 + 2 Na2O + H2
K + Se2 = K2Se =>
4 K + Se2 = 2 K2Se
H2NCH(CH3)OH + Ca(CN)2 = H2NCH(CH3)CN + CaO + H2O =>
2 H2NCH(CH3)OH + Ca(CN)2 = 2 H2NCH(CH3)CN + CaO + H2O
Fe(NO3)3*9H2O + Cd(Cl)2*105H2O = CdFe5O8 + N2 + Cl2 + H2O + O2 =>
10 Fe(NO3)3*9H2O + 2 Cd(Cl)2*105H2O = 2 CdFe5O8 + 15 N2 + 2 Cl2 + 300 H2O + 37 O2
H3PO3 + Ra(OH)2 = Ra3(PO3)2 + H2O =>
2 H3PO3 + 3 Ra(OH)2 = Ra3(PO3)2 + 6 H2O
C7H9 + HNO3 = C7H6(NO2)3 + H2O =>
C7H9 + 3 HNO3 = C7H6(NO2)3 + 3 H2O
Zn{+2} + CO3{-2} = ZnCO3 =>
Zn{+2} + CO3{-2} = ZnCO3
Na + F2 = NaF =>
2 Na + F2 = 2 NaF
SO2 + TeCl4 + H2O = H2SO4 + Te + HCl =>
2 SO2 + TeCl4 + 4 H2O = 2 H2SO4 + Te + 4 HCl
Hg2(NO3)2 + NaBr = Hg2Br2 + NaNO3 =>
Hg2(NO3)2 + 2 NaBr = Hg2Br2 + 2 NaNO3
Na2CO3 + C5H8O2 = C5H6ONa + H2O + CO2 =>
12 Na2CO3 + 25 C5H8O2 = 24 C5H6ONa + 28 H2O + 17 CO2
Fe(OH)3 + H2C2O4 = H2O + Fe2(C2O4)3 =>
2 Fe(OH)3 + 3 H2C2O4 = 6 H2O + Fe2(C2O4)3
Hg2O + F2 = Hg2F2 + O2 =>
2 Hg2O + 2 F2 = 2 Hg2F2 + O2
Cu(NO3)2 + Na2CO3 + H2O = CO2 + CuCO3Cu(OH)2 + NaNO3 =>
2 Cu(NO3)2 + 2 Na2CO3 + H2O = CO2 + CuCO3Cu(OH)2 + 4 NaNO3
H2O2 = H2O + O2 =>
2 H2O2 = 2 H2O + O2
Fe(NO3)3 + Pb(NO3)2 = Fe(NO3)2 + Pb(NO3)3 =>
Fe(NO3)3 + Pb(NO3)2 = Fe(NO3)2 + Pb(NO3)3
H2O + Cl = HCl + O =>
H2O + 2 Cl = 2 HCl + O
Mg + Ag1(NO3) = Ag + Mg(NO3) =>
Mg + Ag1(NO3) = Ag + Mg(NO3)
CH3CH2OH + O2 = H2O + CH3COOH =>
CH3CH2OH + O2 = H2O + CH3COOH
HOC(CH2CO2H) + NaOH = CH3CO2Na + CO2 + H2O =>
4 HOC(CH2CO2H) + 5 NaOH = 5 CH3CO2Na + 2 CO2 + 3 H2O
KI(s) + Cl2(g) = KCl(s) + I2(s) =>
2 KI(s) + Cl2(g) = 2 KCl(s) + I2(s)
Ag + PbO4 = Ag2O + Pb =>
8 Ag + PbO4 = 4 Ag2O + Pb
NH3 + HCl = NH4Cl =>
NH3 + HCl = NH4Cl
Cr3 + (HSO4)3 = Cr(HSO4)3 =>
Cr3 + 3(HSO4)3 = 3 Cr(HSO4)3
H2 + I2 = HI =>
H2 + I2 = 2 HI
H2 + O2 = H2O =>
2 H2 + O2 = 2 H2O
CIO2 + H2O = HCIO3 + H2 =>
2 CIO2 + 2 H2O = 2 HCIO3 + H2
NO2CO = NOCO2 =>
NO2CO = NOCO2
Na2SiO3 + Al = Na2Si + Al2O3 =>
Na2SiO3 + 2 Al = Na2Si + Al2O3
C6H12(l) + Br2(l) + H2O(l) = C6H14(l) + Br2O =>
C6H12(l) + Br2(l) + H2O(l) = C6H14(l) + Br2O
MgCO3(H2O)3 = MgCO3 + H2O =>
MgCO3(H2O)3 = MgCO3 + 3 H2O
K4FeC6N6 + KMnO4 + H2SO4 = KHSO4 + FeS3O12 + MnSO4 + HNO3 + CO2 + H2O =>
5 K4FeC6N6 + 64 KMnO4 + 163 H2SO4 = 84 KHSO4 + 5 FeS3O12 + 64 MnSO4 + 30 HNO3 + 30 CO2 + 106 H2O
Zn + NH2OH + H{+} = Zn{+2} + NH4{+} + H2O =>
Zn + NH2OH + 3 H{+} = Zn{+2} + NH4{+} + H2O
C2H2 + O2 = CO2 + H2O =>
2 C2H2 + 5 O2 = 4 CO2 + 2 H2O
H + Kr = HKr =>
H + Kr = HKr
Al + H{+} + SO42{-} = Al3{+} + H2O + SO2 =>
237 Al + 80 H{+} + SO42{-} = 79 Al3{+} + 40 H2O + SO2
NaClO3 = NaCl + O2 =>
2 NaClO3 = 2 NaCl + 3 O2
NO = N2O*NO2 =>
3 NO = N2O*NO2
Pb{2+}(aq) + I{-}(aq) = PbI2(s) =>
Pb{2+}(aq) + 2 I{-}(aq) = PbI2(s)
MgSiHCl = MgClSiH =>
MgSiHCl = MgClSiH
SO2 + NaOH = NaHSO3 =>
SO2 + NaOH = NaHSO3
CoCl2(C3H8O)2 + H2O = Co(H2O)6 + Cl + C3H8O =>
CoCl2(C3H8O)2 + 6 H2O = Co(H2O)6 + 2 Cl + 2 C3H8O
KBr + KMnO4 + H2SO4 = Br2 + MnSO4 + K2SO4 + H2O =>
10 KBr + 2 KMnO4 + 8 H2SO4 = 5 Br2 + 2 MnSO4 + 6 K2SO4 + 8 H2O
KF + Ca(NO3)2 = KNO3 + CaF2 =>
2 KF + Ca(NO3)2 = 2 KNO3 + CaF2
MgOH = H2OMg2O =>
2 MgOH = H2OMg2O
NaHCO3 = Na2O + CO2 + H2O =>
2 NaHCO3 = Na2O + 2 CO2 + H2O
C4H10 + O2 = CO2 + H2O =>
2 C4H10 + 13 O2 = 8 CO2 + 10 H2O
Fe2O3 + C = Fe + CO2 =>
2 Fe2O3 + 3 C = 4 Fe + 3 CO2
H3AsO4 + NO = As + HNO3 + H2O =>
3 H3AsO4 + 5 NO = 3 As + 5 HNO3 + 2 H2O
NH4 + O = NO + H2O =>
NH4 + 3 O = NO + 2 H2O
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