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4 H2O + Fe3O4 = Fe(OH)2 + 2 Fe(OH)3
Pb + H2SO4 = Pb(SO4)2 + H2 =>
Pb + 2 H2SO4 = Pb(SO4)2 + 2 H2
CaSO4(s) = Ca(s) + S8(s) + O2(g) =>
8 CaSO4(s) = 8 Ca(s) + S8(s) + 16 O2(g)
CH3CHNH2CH2COOH + Na = CH3CHNH2CH2COONa + H2 =>
2 CH3CHNH2CH2COOH + 2 Na = 2 CH3CHNH2CH2COONa + H2
CH3CH2OH + H2SO4 + K2Cr2O7 = CH3CHO + K2SO4 + Cr2(SO4)3 + H2O =>
3 CH3CH2OH + 4 H2SO4 + K2Cr2O7 = 3 CH3CHO + K2SO4 + Cr2(SO4)3 + 7 H2O
Al2(SO4)3 + CsOH = Cs2SO4 + Cs[Al(OH)4] =>
Al2(SO4)3 + 8 CsOH = 3 Cs2SO4 + 2 Cs[Al(OH)4]
CUO2 + HCl = CUCl2 + HO =>
CUO2 + 2 HCl = CUCl2 + 2 HO
NO2 + H2O = NH3 + OH =>
NO2 + 5 H2O = NH3 + 7 OH
Na2S + Zn(CH3COO)2 = ZnS + NaCH3COO =>
Na2S + Zn(CH3COO)2 = ZnS + 2 NaCH3COO
KClO4 + C6H12O6 = KCl + H2O + CO2 =>
3 KClO4 + C6H12O6 = 3 KCl + 6 H2O + 6 CO2
H3BO3 + KHF2 = KBF4 + KOH + H2O =>
H3BO3 + 2 KHF2 = KBF4 + KOH + 2 H2O
AlP + CaC2 = AlC3 + Ca3P2 =>
2 AlP + 3 CaC2 = 2 AlC3 + Ca3P2
Al + Zn(Cl2) = Al(Cl2) + Zn =>
Al + Zn(Cl2) = Al(Cl2) + Zn
Na2SO4(l) + CaCl2(l) = CaSO4(l) + NaCl(l) =>
Na2SO4(l) + CaCl2(l) = CaSO4(l) + 2 NaCl(l)
C5H12 + HCl = C5H12Cl + H2 =>
2 C5H12 + 2 HCl = 2 C5H12Cl + H2
OH{-} + Cu2S + Ce{4+} = Cu{2+} + SO4{2-} + Ce{3+} + H2O =>
8 OH{-} + Cu2S + 10 Ce{4+} = 2 Cu{2+} + SO4{2-} + 10 Ce{3+} + 4 H2O
C2H6OH + KMnO4 = H4C2O + H2O + KOH + MnO2 =>
C2H6OH + KMnO4 = H4C2O + H2O + KOH + MnO2
Br{-} + NH4{+} = NH4Br =>
Br{-} + NH4{+} = NH4Br
CH3CH2CHOH + O2 = CO2 + H2O =>
4 CH3CH2CHOH + 17 O2 = 12 CO2 + 14 H2O
Ca(ClO4)2 = Ca(Cl2) + O2 =>
Ca(ClO4)2 = Ca(Cl2) + 4 O2
MgCO3 + H3PO4 = Mg3(PO4)2 + CO2 + H2O = ? =>
3 MgCO3 + 2 H3PO4 = Mg3(PO4)2 + 3 CO2 + 3 H2O
(NH4)2C2O4(aq) + CaCl2(aq) = CaC2O4(aq) + NH4Cl(aq) =>
(NH4)2C2O4(aq) + CaCl2(aq) = CaC2O4(aq) + 2 NH4Cl(aq)
MHL + CO2 = MHLC + O2 =>
MHL + CO2 = MHLC + O2
Co3Cr4 = Co3 + Cr2 =>
Co3Cr4 = Co3 + 2 Cr2
Hg2Cl2 + NaOH = Hg + HgO + H2O + NaCl =>
Hg2Cl2 + 2 NaOH = Hg + HgO + H2O + 2 NaCl
Zn6 + H2SO4 = Zn(SO4)2 + H2 =>
Zn6 + 12 H2SO4 = 6 Zn(SO4)2 + 12 H2
N2H4 + KOH + KMnO4 = K2MnO4 + H2O + N2 =>
N2H4 + 4 KOH + 4 KMnO4 = 4 K2MnO4 + 4 H2O + N2
C6H5Br + H2 = C6H11Br =>
C6H5Br + 3 H2 = C6H11Br
O3 + C = C3O2 =>
2 O3 + 9 C = 3 C3O2
TiCl3 + KBiO3 + HCl = KCl + H2O + BiCl3 + TiOCl2 =>
2 TiCl3 + KBiO3 + 2 HCl = KCl + H2O + BiCl3 + 2 TiOCl2
H2SO4 + Na = H2 + Na2SO4 =>
H2SO4 + 2 Na = H2 + Na2SO4
Mn + H2O = MnO + H2 =>
Mn + H2O = MnO + H2
C2H6 + CH3MgCl = C3H8 + MgHCl =>
C2H6 + CH3MgCl = C3H8 + MgHCl
NaOH + NH4ClO3 = NaClO3 + NH4OH =>
NaOH + NH4ClO3 = NaClO3 + NH4OH
CH3COONaNaOH = Na2CO3CH4 =>
CH3COONaNaOH = Na2CO3CH4
C4H8 + NaOH = C4H8(OH)2 + Na =>
C4H8 + 2 NaOH = C4H8(OH)2 + 2 Na
Cd + H3PO4 = Cd(PO4)2 + H =>
Cd + 2 H3PO4 = Cd(PO4)2 + 6 H
Na2HPO2 + NaOH = Na3PO2 + H2O =>
Na2HPO2 + NaOH = Na3PO2 + H2O
CO + H2O = CH4 + CO2 =>
4 CO + 2 H2O = CH4 + 3 CO2
ZnCl2 = Zn{2+} + Cl{-} =>
ZnCl2 = Zn{2+} + 2 Cl{-}
Bi(NO3)3 + NaOH + Na2SnO2 + H2O = Bi + Na[Sn(OH)6] + NaNO3 =>
Bi(NO3)3 + 2 NaOH + Na2SnO2 + 2 H2O = Bi + Na[Sn(OH)6] + 3 NaNO3
Fe(NH4)2(SO4)2 + (COOH)2 = Fe(COO)2 + (NH4)2SO4 + H2SO4 =>
Fe(NH4)2(SO4)2 + (COOH)2 = Fe(COO)2 + (NH4)2SO4 + H2SO4
HNO3NH3 = NH4NO3 =>
HNO3NH3 = NH4NO3
NaH2PO4 + H2SO4 = Na2SO4 + H3PO4 =>
2 NaH2PO4 + H2SO4 = Na2SO4 + 2 H3PO4
Si3N4 + CO2 = SiO2 + CO + N2 =>
Si3N4 + 6 CO2 = 3 SiO2 + 6 CO + 2 N2
Na(OH) + Br2 = Na(BrO3) + NaBr + H2O =>
6 Na(OH) + 3 Br2 = Na(BrO3) + 5 NaBr + 3 H2O
NiCl2 + H3PO4 = HCl + Ni3(PO4)2 =>
3 NiCl2 + 2 H3PO4 = 6 HCl + Ni3(PO4)2
NaHSO3 + H2SO4 = NaSO4 + SO2 + H2O =>
2 NaHSO3 + 3 H2SO4 = 2 NaSO4 + 3 SO2 + 4 H2O
CH4 + O2 = CH2COOH + H2O =>
8 CH4 + 9 O2 = 4 CH2COOH + 10 H2O
NaHSO3 + H2SO4 = NaSO4 + SO2 + H2O =>
2 NaHSO3 + 3 H2SO4 = 2 NaSO4 + 3 SO2 + 4 H2O
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