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(NH4)2Cr2O7 = Cr2O3 + N2 + 4 H2O
CoO + O2 = Co2O3 =>
4 CoO + O2 = 2 Co2O3
Ca(NO3)2 + Na = NaNO3 + Ca =>
Ca(NO3)2 + 2 Na = 2 NaNO3 + Ca
Fe2(SO4)3 + BaCl2 = FeCl3 + BaSO4 =>
Fe2(SO4)3 + 3 BaCl2 = 2 FeCl3 + 3 BaSO4
C17H34COOH + K = C17H33COOK + H2 =>
C17H34COOH + K = C17H33COOK + H2
C2H6 + Cl2 = C2H5Cl + HCl =>
C2H6 + Cl2 = C2H5Cl + HCl
C17H33COOH + K = C17H33COOK + H2 =>
2 C17H33COOH + 2 K = 2 C17H33COOK + H2
H2CO3 = CO2 + H2O =>
H2CO3 = CO2 + H2O
CaCO3 + HC2H3O2 = H2CO3 + Ca(C2H3O2)2 =>
CaCO3 + 2 HC2H3O2 = H2CO3 + Ca(C2H3O2)2
Pb(s) + AgNO3(aq) = Pb(NO3)2 + Ag(s) =>
Pb(s) + 2 AgNO3(aq) = Pb(NO3)2 + 2 Ag(s)
P + F2 = PF3 =>
2 P + 3 F2 = 2 PF3
Fe + O2 = Fe2O =>
4 Fe + O2 = 2 Fe2O
Fe2(SO4)3 + BaCl2 = FeCl3 + BaSO4 =>
Fe2(SO4)3 + 3 BaCl2 = 2 FeCl3 + 3 BaSO4
AgI + Fe2(CO3)3 = FeI3 + Ag2CO3 =>
6 AgI + Fe2(CO3)3 = 2 FeI3 + 3 Ag2CO3
Sr + H2 = SrH2 =>
Sr + H2 = SrH2
CoO + O2 = Co2O3 =>
4 CoO + O2 = 2 Co2O3
H3PO4 + LiOH = Li3PO4 + H2O =>
H3PO4 + 3 LiOH = Li3PO4 + 3 H2O
Pb(OH)2 + HCl = H2O + PbCl2 =>
Pb(OH)2 + 2 HCl = 2 H2O + PbCl2
CaCl2 + Na3PO4 = Ca3(PO4)2 + NaCl =>
3 CaCl2 + 2 Na3PO4 = Ca3(PO4)2 + 6 NaCl
C6H14 + O2 = CO2 + H2O =>
2 C6H14 + 19 O2 = 12 CO2 + 14 H2O
Mg + O2 = MgO =>
2 Mg + O2 = 2 MgO
CH3(CH2)6CH3 + O2 = CO2 + H2O =>
2 CH3(CH2)6CH3 + 25 O2 = 16 CO2 + 18 H2O
PbSO4 + NaCl = PbCl2 + Na2SO4 =>
PbSO4 + 2 NaCl = PbCl2 + Na2SO4
C3H6 + O2 = C + H2O =>
2 C3H6 + 3 O2 = 6 C + 6 H2O
CH3COOH + Zn = H2 + Zn(CH3COO)2 =>
2 CH3COOH + Zn = H2 + Zn(CH3COO)2
N2 + H2 = NH3 =>
N2 + 3 H2 = 2 NH3
Fe + CO2 = Fe2O3 + C =>
4 Fe + 3 CO2 = 2 Fe2O3 + 3 C
Na + H2O = NaOH + H2 =>
2 Na + 2 H2O = 2 NaOH + H2
NaCl + KOH = NaOH + KCl =>
NaCl + KOH = NaOH + KCl
NaOCl = NaCl + NaClO3 =>
3 NaOCl = 2 NaCl + NaClO3
Na + H2O = NaOH + H2 =>
2 Na + 2 H2O = 2 NaOH + H2
CO2 + H2O = C6H12O6 + O2 =>
6 CO2 + 6 H2O = C6H12O6 + 6 O2
CuCO3 = CuO + CO2 =>
CuCO3 = CuO + CO2
H2SO4 + KOH = K2SO4 + H2O =>
H2SO4 + 2 KOH = K2SO4 + 2 H2O
AgNO3 + NaCl = AgCl + NaNO3 =>
AgNO3 + NaCl = AgCl + NaNO3
Fe + O2 = Fe2O3 =>
4 Fe + 3 O2 = 2 Fe2O3
Cu + H2 = CuH2 =>
Cu + H2 = CuH2
C2H2 + O2 = CO2 + H2O =>
2 C2H2 + 5 O2 = 4 CO2 + 2 H2O
FeCl3 + NaOH = Fe(OH)3 + NaCl =>
FeCl3 + 3 NaOH = Fe(OH)3 + 3 NaCl
NaOCl = NaCl + O2 =>
2 NaOCl = 2 NaCl + O2
Al(OH)3 + H2SO4 = Al2(SO4)3 + H2O =>
2 Al(OH)3 + 3 H2SO4 = Al2(SO4)3 + 6 H2O
H2 + Cl2 = HCl =>
H2 + Cl2 = 2 HCl
Fe2(SO4)3 + KOH = K2SO4 + Fe(OH)3 =>
Fe2(SO4)3 + 6 KOH = 3 K2SO4 + 2 Fe(OH)3
(NH4)2CO3 = NH3 + H2O + CO2 =>
(NH4)2CO3 = 2 NH3 + H2O + CO2
FeCl3 + NaOH = Fe(OH)3 + NaCl =>
FeCl3 + 3 NaOH = Fe(OH)3 + 3 NaCl
As + Cl2 = AsCl3 =>
2 As + 3 Cl2 = 2 AsCl3
NaOH + H3PO4 = Na3PO4 + H2O =>
3 NaOH + H3PO4 = Na3PO4 + 3 H2O
Zn(OH)2 + NH3 = [Zn(NH3)4](OH)2 =>
Zn(OH)2 + 4 NH3 = [Zn(NH3)4](OH)2
NH4NO3 = N2O + H2O =>
NH4NO3 = N2O + 2 H2O
Al + O2 = Al2O3 =>
4 Al + 3 O2 = 2 Al2O3
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