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2 Co3O4(s) = 6 CoO(s) + O2(g)
H2O = H2 + O2 =>
2 H2O = 2 H2 + O2
N2O + Al = AlO + N2 =>
N2O + Al = AlO + N2
HF + K2SO3 = H2SO3 + KF =>
2 HF + K2SO3 = H2SO3 + 2 KF
CuSO4 + CaO + H2O = Cu(OH)2 + CaSO4H2O =>
CuSO4 + CaO + 2 H2O = Cu(OH)2 + CaSO4H2O
PbCl2(aq) + K2SO4(aq) = PbSO4(s) + KCl(aq) =>
PbCl2(aq) + K2SO4(aq) = PbSO4(s) + 2 KCl(aq)
Rb + O2 = RbO =>
2 Rb + O2 = 2 RbO
C6H5CH2CH(NH2)COOH + NaOH = C6H5CH2CH(NH2)COONa + H2O =>
C6H5CH2CH(NH2)COOH + NaOH = C6H5CH2CH(NH2)COONa + H2O
Ca(NO3)2 + HCl = CaCl2 + HNO3 =>
Ca(NO3)2 + 2 HCl = CaCl2 + 2 HNO3
ZnI2 + K2CO3 = ZnCO3 + KI =>
ZnI2 + K2CO3 = ZnCO3 + 2 KI
NO2 + CO = N + CO2 =>
NO2 + 2 CO = N + 2 CO2
BaO + NH4Cl = BaCl2 + (NH4)2O =>
BaO + 2 NH4Cl = BaCl2 + (NH4)2O
(NH4)3PO4 + HNO3 = NH4NO3 + H3PO4 =>
(NH4)3PO4 + 3 HNO3 = 3 NH4NO3 + H3PO4
CH4 + I2 = CHI3 + HI =>
CH4 + 3 I2 = CHI3 + 3 HI
CuCl2 + KSCN = Cu(SCN)2 + KCl =>
CuCl2 + 2 KSCN = Cu(SCN)2 + 2 KCl
C6H5CH3 + Cl2 + H2O = C6H5CHO + HCl =>
C6H5CH3 + 2 Cl2 + H2O = C6H5CHO + 4 HCl
H2O + CrO + NaOH = Na2CrO4 + H2 =>
H2O + CrO + 2 NaOH = Na2CrO4 + 2 H2
Fe + KSCN + H2O2 = FeO2 + KSCNH2 =>
Fe + KSCN + H2O2 = FeO2 + KSCNH2
Al2(SO4)3 + CH3COOH = H2O + Al(CH3COO)3 + SO3 =>
Al2(SO4)3 + 6 CH3COOH = 3 H2O + 2 Al(CH3COO)3 + 3 SO3
C2H2(g) + O2(g) = CO2(g) + H2O(l) =>
2 C2H2(g) + 5 O2(g) = 4 CO2(g) + 2 H2O(l)
MgBr2 + CI2 = MgCI2Br2 =>
MgBr2 + CI2 = MgCI2Br2
Na(s) + HO2(aq) = H2 + NaO(aq) =>
4 Na(s) + 2 HO2(aq) = H2 + 4 NaO(aq)
CO + O2 + H2O = HCO3{-} + H{+} =>
2 CO + O2 + 2 H2O = 2 HCO3{-} + 2 H{+}
K2CO3 + HCl = CO2 + H2O + KCl =>
K2CO3 + 2 HCl = CO2 + H2O + 2 KCl
CO2 + S8 = CS2 + SO2 =>
8 CO2 + 3 S8 = 8 CS2 + 8 SO2
NO + H2SO4 + KMnO4 = NO2 + K2SO4 + MnSO4 + H2O =>
5 NO + 3 H2SO4 + 2 KMnO4 = 5 NO2 + K2SO4 + 2 MnSO4 + 3 H2O
Cr2O7{-2} + SO3{2-} + H{+} = Cr{+3} + SO4{2-} + HOH =>
Cr2O7{-2} + 3 SO3{2-} + 8 H{+} = 2 Cr{+3} + 3 SO4{2-} + 4 HOH
Na + H2O = NaOH + H2 =>
2 Na + 2 H2O = 2 NaOH + H2
Na2O + CaCO3 = NaCO3 + Ca2O =>
Na2O + 2 CaCO3 = 2 NaCO3 + Ca2O
Cu2S + NH3 = CuNH3 + S =>
Cu2S + 2 NH3 = 2 CuNH3 + S
NH3 + H2SO4 = S + H2NSO4 + H2O =>
2 NH3 + 3 H2SO4 = S + 2 H2NSO4 + 4 H2O
Zn{2+} + MnO2 + OH{-} = MnO4 + H2O + Zn =>
2 Zn{2+} + MnO2 + 4 OH{-} = MnO4 + 2 H2O + 2 Zn
CrBr2 + Na2CO3 = Na2Cr + Br2CO3 =>
CrBr2 + Na2CO3 = Na2Cr + Br2CO3
HCl + KClO3 = Cl2 + KCl + HOH =>
6 HCl + KClO3 = 3 Cl2 + KCl + 3 HOH
N2O + H2O = NH4NO3 =>
N2O + 2 H2O = NH4NO3
Co(OH)2 = Co{2+} + OH{-} =>
Co(OH)2 = Co{2+} + 2 OH{-}
Fe1S1 + O2 = Fe2O3 + S1O2 =>
4 Fe1S1 + 7 O2 = 2 Fe2O3 + 4 S1O2
C2H2 + O2 = CO2 + H2O =>
2 C2H2 + 5 O2 = 4 CO2 + 2 H2O
C6H5CH2OH + KMnO4 + H2SO4 = C6H5COOH + K2SO4 + MnSO4 + H2O =>
5 C6H5CH2OH + 4 KMnO4 + 6 H2SO4 = 5 C6H5COOH + 2 K2SO4 + 4 MnSO4 + 11 H2O
CuCl2 + Na2SiO3 = CuSiO3 + Na2Cl2 =>
CuCl2 + Na2SiO3 = CuSiO3 + Na2Cl2
NH3 + O2 = NO + H2O =>
4 NH3 + 5 O2 = 4 NO + 6 H2O
C2O4H2 + KMnO4 = CO2 + MnO2 + H2O + KOH =>
3 C2O4H2 + 2 KMnO4 = 6 CO2 + 2 MnO2 + 2 H2O + 2 KOH
AgNO3 + KCl = AgCl + KNO3 =>
AgNO3 + KCl = AgCl + KNO3
CH3CHO + NH3 = CH3CHNH + H2O =>
CH3CHO + NH3 = CH3CHNH + H2O
NH4NO3 + Cu = N2 + H2O + CuO =>
NH4NO3 + Cu = N2 + 2 H2O + CuO
CuNO3 + KCl = CuCl + KNO3 =>
CuNO3 + KCl = CuCl + KNO3
Pb(NO3)2 + HBr = H(NO3) + PbBr2 =>
Pb(NO3)2 + 2 HBr = 2 H(NO3) + PbBr2
Al + KOH = Al(OH)3 + K =>
Al + 3 KOH = Al(OH)3 + 3 K
Li + AlCl3 = LiCl + Al =>
3 Li + AlCl3 = 3 LiCl + Al
K2O + H2S = K2S + H2O =>
K2O + H2S = K2S + H2O
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