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3 Ni{2+} + 2(NH4)2S = Ni3S2 + 2(NH4)2{3+}
S + ZnO = SO + Zn =>
S + ZnO = SO + Zn
C2H4 + O2 = CO2 + H2O =>
C2H4 + 3 O2 = 2 CO2 + 2 H2O
Na + H3PO4 = Na3PO4 + H2 =>
6 Na + 2 H3PO4 = 2 Na3PO4 + 3 H2
P4 + OH{-} + H2O = H2PO2{-} + PH3 =>
P4 + 3 OH{-} + 3 H2O = 3 H2PO2{-} + PH3
P2O5 + ZnO = ZnP + O2 =>
2 P2O5 + 4 ZnO = 4 ZnP + 7 O2
CH2O + O2 = CO2 + H2O =>
CH2O + O2 = CO2 + H2O
NH4Cl + H2SO4 = (NH4)2SO4 + HCl =>
2 NH4Cl + H2SO4 = (NH4)2SO4 + 2 HCl
Al + CuCl2 = Cu + AlCl3 =>
2 Al + 3 CuCl2 = 3 Cu + 2 AlCl3
CH3CO2H + K2CO3 = CH3CO2K + CO2 + H2O =>
2 CH3CO2H + K2CO3 = 2 CH3CO2K + CO2 + H2O
Zn + (CaOH)2 = ZnOH + Ca =>
2 Zn + (CaOH)2 = 2 ZnOH + 2 Ca
Co(OH)2 + Cl2 + KOH = CoO2 + KCl + H2O =>
Co(OH)2 + Cl2 + 2 KOH = CoO2 + 2 KCl + 2 H2O
H + N2O3 = H2O + N =>
6 H + N2O3 = 3 H2O + 2 N
B5H9 + O2 = B2O3 + H2O =>
2 B5H9 + 12 O2 = 5 B2O3 + 9 H2O
NaOH + NaClO + KI = Na + I + HCl + K2O =>
NaOH + NaClO + 4 KI = 2 Na + 4 I + HCl + 2 K2O
HNO3 = H2O + NO2 + O2 =>
4 HNO3 = 2 H2O + 4 NO2 + O2
CoCl2*6H2O + NH4Cl + NH3 + H2O2 = [Co(NH3)5Cl2]Cl3 + H2O =>
2 CoCl2*6H2O + 6 NH4Cl + 4 NH3 + 3 H2O2 = 2[Co(NH3)5Cl2]Cl3 + 18 H2O
CH3OH + O2 = CO2 + H2O =>
2 CH3OH + 3 O2 = 2 CO2 + 4 H2O
CH9 + O2 = CO2 + H2O =>
4 CH9 + 13 O2 = 4 CO2 + 18 H2O
H2CO3 + LiI = H2CO3LiI =>
H2CO3 + LiI = H2CO3LiI
FeSO4 + H2O = [Fe(H2O)4]SO4 =>
FeSO4 + 4 H2O = [Fe(H2O)4]SO4
Cu + HNO3 = Cu(NO3)2 + NO + H2O =>
3 Cu + 8 HNO3 = 3 Cu(NO3)2 + 2 NO + 4 H2O
Zn + Fe(SO3)2 + H2SO4 = ZnSO4 + FeSO4 + HS =>
3 Zn + 4 Fe(SO3)2 + H2SO4 = 3 ZnSO4 + 4 FeSO4 + 2 HS
NO2{-} + H2NSO3H = N2 + SO4{2-}H{+} + HO =>
4 NO2{-} + 2 H2NSO3H = 3 N2 + 2 SO4{2-}H{+} + 6 HO
XC2H3 + KMnO4 = XCOOK + K2CO3 + MnO2 + KOH + H2O =>
3 XC2H3 + 10 KMnO4 = 3 XCOOK + 3 K2CO3 + 10 MnO2 + KOH + 4 H2O
Co(OH)2 + Cl2 + KOH = CoO2 + KCl + H2O =>
Co(OH)2 + Cl2 + 2 KOH = CoO2 + 2 KCl + 2 H2O
Be + CaCl2 = BeCl2 + Ca =>
Be + CaCl2 = BeCl2 + Ca
Co + NH3 = CoNH3 =>
Co + NH3 = CoNH3
SeCl6 + O2 = SeO2 + Cl2 =>
SeCl6 + O2 = SeO2 + 3 Cl2
CuO2 + H2 = Cu2 + H2O =>
2 CuO2 + 4 H2 = Cu2 + 4 H2O
C2H6 + O2 = CO2 + H2O =>
2 C2H6 + 7 O2 = 4 CO2 + 6 H2O
Pb(CH3COO)2 + Na3PO4 = Pb3(PO4)2 + Na(CH3COO) =>
3 Pb(CH3COO)2 + 2 Na3PO4 = Pb3(PO4)2 + 6 Na(CH3COO)
KClO3 = KCl + O2 =>
2 KClO3 = 2 KCl + 3 O2
Cu(NO3)2 + KOH = Cu(OH)2 + KNO3 =>
Cu(NO3)2 + 2 KOH = Cu(OH)2 + 2 KNO3
C8H18 + O2 = CO2 + H2O =>
2 C8H18 + 25 O2 = 16 CO2 + 18 H2O
P + HNO3 + H2O = H3PO4 + NO =>
3 P + 5 HNO3 + 2 H2O = 3 H3PO4 + 5 NO
Co(OH)2 + Cl2 + KOH = CoO2 + KCl + H2O =>
Co(OH)2 + Cl2 + 2 KOH = CoO2 + 2 KCl + 2 H2O
Pb(CH3COO)2 + KBr = PbBr2 + KCH3COO =>
Pb(CH3COO)2 + 2 KBr = PbBr2 + 2 KCH3COO
CeO2 + KI + HCl = KCl + CeCl3 + H2O + I2 =>
2 CeO2 + 2 KI + 8 HCl = 2 KCl + 2 CeCl3 + 4 H2O + I2
SO2 + O2 = SO3 =>
2 SO2 + O2 = 2 SO3
K2Cr2O7 + Na2S2O3 + HCl = KCl + CrCl3 + NaCl + SO2 + H2O =>
2 K2Cr2O7 + 3 Na2S2O3 + 22 HCl = 4 KCl + 4 CrCl3 + 6 NaCl + 6 SO2 + 11 H2O
MgI2 + Br2 = MgBr2 + I2 =>
MgI2 + Br2 = MgBr2 + I2
SiCl4 = Si + Cl2 =>
SiCl4 = Si + 2 Cl2
Zn + HNO3 = Zn(NO3)2 + H2 =>
Zn + 2 HNO3 = Zn(NO3)2 + H2
Mn2O3 + O2 = MnO2 =>
2 Mn2O3 + O2 = 4 MnO2
MnO2 + KNO2 = KMnO4 + N =>
MnO2 + KNO2 = KMnO4 + N
Cl2 + NaOH = NaCl + HClO3 + H2O =>
3 Cl2 + 5 NaOH = 5 NaCl + HClO3 + 2 H2O
C6H5COH + Br2 = C6H5COHBr2 =>
C6H5COH + Br2 = C6H5COHBr2
MnCl2 + CdSO4 = MnSO4 + CdCl2 =>
MnCl2 + CdSO4 = MnSO4 + CdCl2
CH3COOH + Ba(OH)2 = HOH + Ba(CH3COO)2 =>
2 CH3COOH + Ba(OH)2 = 2 HOH + Ba(CH3COO)2
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