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3 Fe + 4 H2O = Fe3O4 + 4 H2
Cr2(SO4)3 + Cl2 + KOH = K2CrO4 + KCl + KSO4 + H2O =>
2 Cr2(SO4)3 + 9 Cl2 + 32 KOH = 4 K2CrO4 + 18 KCl + 6 KSO4 + 16 H2O
K4Fe(CN)6 + KMnO4 + H2SO4 = K3Fe(CN)6 + MnSO4 + K2SO4 + H2O =>
5 K4Fe(CN)6 + KMnO4 + 4 H2SO4 = 5 K3Fe(CN)6 + MnSO4 + 3 K2SO4 + 4 H2O
Hg2(aq) + H2S(aq) = HgS(s) + H(aq) =>
Hg2(aq) + 2 H2S(aq) = 2 HgS(s) + 4 H(aq)
SO3 + H2SO4 = SSO4 + H2O3 =>
SO3 + H2SO4 = SSO4 + H2O3
CO + O2 = CO2 =>
2 CO + O2 = 2 CO2
NH4MgPO4 + HCl + H2O = H3PO4 + MgCl2 + NH4OH =>
NH4MgPO4 + 2 HCl + H2O = H3PO4 + MgCl2 + NH4OH
H3PO4 + HF = HPF6 + H2O =>
H3PO4 + 6 HF = HPF6 + 4 H2O
NaB4O7 + H2SO4 = HB4O7 + Na2SO4 =>
2 NaB4O7 + H2SO4 = 2 HB4O7 + Na2SO4
K3Te(CN)6 + Cr2O3 + KOH = K4Te(CN)6 + K2CrO4 + H2O =>
6 K3Te(CN)6 + Cr2O3 + 10 KOH = 6 K4Te(CN)6 + 2 K2CrO4 + 5 H2O
Na(C2H3O2) + (NH4)2(SO4) = (NH4)(C2H3O2) + Na2SO4 =>
2 Na(C2H3O2) + (NH4)2(SO4) = 2(NH4)(C2H3O2) + Na2SO4
NH4MgPO4 + HCl + H2O = H3PO4 + MgCl2 + NH4OH =>
NH4MgPO4 + 2 HCl + H2O = H3PO4 + MgCl2 + NH4OH
Ag(CH3COO) + SrI2 = Sr(CH3COO)2 + AgI =>
2 Ag(CH3COO) + SrI2 = Sr(CH3COO)2 + 2 AgI
H2SO4(aq) + NaCO3(aq) = H2CO3(s) + NaSO4(aq) =>
H2SO4(aq) + NaCO3(aq) = H2CO3(s) + NaSO4(aq)
Cr(s) + HBr(aq) = CrBr3(aq) + H2(g) =>
2 Cr(s) + 6 HBr(aq) = 2 CrBr3(aq) + 3 H2(g)
Na2S3 + HNO3 = Na2SO4 + H2SO4 + NO + H2O =>
3 Na2S3 + 20 HNO3 = 3 Na2SO4 + 6 H2SO4 + 20 NO + 4 H2O
Ti + HNO3 = NO2 + Ti(NO3)3 + H2O =>
Ti + 6 HNO3 = 3 NO2 + Ti(NO3)3 + 3 H2O
NH22 = N2 + H2 =>
2 NH22 = N2 + 22 H2
KNO3 = KNO2 + O =>
KNO3 = KNO2 + O
I{5+} + O{2-} = I2O5 =>
2 I{5+} + 5 O{2-} = I2O5
Li + FeN = Fe + Li3N =>
3 Li + FeN = Fe + Li3N
Ph + Br = Ph3Br =>
3 Ph + Br = Ph3Br
K2CrO7 + KI + H2SO4 = K2SO4 + I2 + Cr(SO4)3 + H2O =>
K2CrO7 + 6 KI + 7 H2SO4 = 4 K2SO4 + 3 I2 + Cr(SO4)3 + 7 H2O
C2H60 + O = CO + H2O =>
C2H60 + 32 O = 2 CO + 30 H2O
Pb(NO{3-}){2+} + KI = PbI{2+} + KNO{3-} =>
Pb(NO{3-}){2+} + KI = PbI{2+} + KNO{3-}
C9H11O + O2 = C2O + H2O =>
2 C9H11O + 9 O2 = 9 C2O + 11 H2O
Sn(NO2)2 + KI = SnI2 + KNO2 =>
Sn(NO2)2 + 2 KI = SnI2 + 2 KNO2
C4H11N + H2SO4 = C4H12N + HSO4 =>
C4H11N + H2SO4 = C4H12N + HSO4
Sc + H2O = Sc(OH)3 + H2 =>
2 Sc + 6 H2O = 2 Sc(OH)3 + 3 H2
Pb(PbO2) + H2SO4 = PbSO4 + H2O =>
Pb(PbO2) + 2 H2SO4 = 2 PbSO4 + 2 H2O
CuBr2 + K2CO3 = CuCO3 + KBr =>
CuBr2 + K2CO3 = CuCO3 + 2 KBr
CrO3 + Na2SO4 = Na2CrO4 + SO3 =>
CrO3 + Na2SO4 = Na2CrO4 + SO3
Ba(HCO3)2 + CaCl2 = CaCO3 + BaCl2 + CO2 + H2O =>
Ba(HCO3)2 + CaCl2 = CaCO3 + BaCl2 + CO2 + H2O
Ba[Zn(OH)4] + H2SO4 = Zn(OH)2 + BaSO4 + H2O =>
Ba[Zn(OH)4] + H2SO4 = Zn(OH)2 + BaSO4 + 2 H2O
Na2O + LiF = NaF + Li2O =>
Na2O + 2 LiF = 2 NaF + Li2O
C8H16 + O2 = CO + H2O =>
C8H16 + 8 O2 = 8 CO + 8 H2O
NaHCO3 + Zn = Na2 + Zn(CO3)2 + H2 =>
2 NaHCO3 + Zn = Na2 + Zn(CO3)2 + H2
H + Au + Cl = HAuCl4 =>
H + Au + 4 Cl = HAuCl4
Pb(NO3)2(aq) + HI(aq) = H(NO3)2(aq) + PbI(s) =>
Pb(NO3)2(aq) + HI(aq) = H(NO3)2(aq) + PbI(s)
(C6H5)2CHONa + CH3CH2OH = (C6H5)2CHOH + CH3CH2ONa =>
(C6H5)2CHONa + CH3CH2OH = (C6H5)2CHOH + CH3CH2ONa
NO + NH2OH = N2 + H2O =>
2 NO + 4 NH2OH = 3 N2 + 6 H2O
C8H16 + O2 = CO2 + H2O =>
C8H16 + 12 O2 = 8 CO2 + 8 H2O
PbO2 + HCl = Cl + PbCl2 + H2O =>
PbO2 + 4 HCl = 2 Cl + PbCl2 + 2 H2O
ZnCl2 + Na3PO4 = Zn3(PO4)2 + NaCl =>
3 ZnCl2 + 2 Na3PO4 = Zn3(PO4)2 + 6 NaCl
Al + NaOH + H2O = [NaAl(OH)6] + H2 =>
2 Al + 2 NaOH + 10 H2O = 2[NaAl(OH)6] + 5 H2
Cr2(SO3)3 + HCl = CrCl3 + SO2 + H2O =>
Cr2(SO3)3 + 6 HCl = 2 CrCl3 + 3 SO2 + 3 H2O
Au + KCN + H2O + O2 = KAu(CN)4 + KOH =>
4 Au + 16 KCN + 6 H2O + 3 O2 = 4 KAu(CN)4 + 12 KOH
C5H12 + O2 = CO2 + H2O2 =>
C5H12 + 11 O2 = 5 CO2 + 6 H2O2
H2S + IO3{-} + H{+} = I2 + S + H2O =>
5 H2S + 2 IO3{-} + 2 H{+} = I2 + 5 S + 6 H2O
Al(OH)3 + HF = AlF3 + HOH =>
Al(OH)3 + 3 HF = AlF3 + 3 HOH
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