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2 K + F2 = 2 KF
Zn + FeCl2 = ZnCl2 + Fe =>
Zn + FeCl2 = ZnCl2 + Fe
HCl + HNO3 = H2O + NO + Cl2 =>
6 HCl + 2 HNO3 = 4 H2O + 2 NO + 3 Cl2
Fe3O4 + H2 = Fe + H2O =>
Fe3O4 + 4 H2 = 3 Fe + 4 H2O
NaF + Br2 = NaBr + F2 =>
2 NaF + Br2 = 2 NaBr + F2
Fe2O3(s) + C(s) = Fe(s) + CO(g) =>
Fe2O3(s) + 3 C(s) = 2 Fe(s) + 3 CO(g)
F2 + MgI2 = I2 + MgF =>
F2 + 2 MgI2 = 2 I2 + 2 MgF
CH3CH2OH + KMnO4 + H2SO4 = CH3CHO + MnO2 + K2SO4 + H2O =>
3 CH3CH2OH + 2 KMnO4 + H2SO4 = 3 CH3CHO + 2 MnO2 + K2SO4 + 4 H2O
Na2CO3 + HCl = NaCl + H2O + CO2 =>
Na2CO3 + 2 HCl = 2 NaCl + H2O + CO2
HCl + CaCO3 = CaCl2 + H2O + CO2 =>
2 HCl + CaCO3 = CaCl2 + H2O + CO2
AuCl3 + Ag = AgCl + Au =>
AuCl3 + 3 Ag = 3 AgCl + Au
H2SO4 + NaCl = Na2SO4 + HCl =>
H2SO4 + 2 NaCl = Na2SO4 + 2 HCl
Ca(OH)2 + H3PO4 = Ca3(PO4)2 + H2O =>
3 Ca(OH)2 + 2 H3PO4 = Ca3(PO4)2 + 6 H2O
K(NO3) + AgBr = KBr + Ag(NO3) =>
K(NO3) + AgBr = KBr + Ag(NO3)
HCl + CaCO3 = CaCl2 + H2O + CO2 =>
2 HCl + CaCO3 = CaCl2 + H2O + CO2
Al(OH)3 = Al2O3 + H2O =>
2 Al(OH)3 = Al2O3 + 3 H2O
H2SO4 + NaOH = Na2SO4 + H2O =>
H2SO4 + 2 NaOH = Na2SO4 + 2 H2O
K2O + H2SO4 = K2SO4 + H2O =>
K2O + H2SO4 = K2SO4 + H2O
F2 + NaI = I2 + NaF =>
F2 + 2 NaI = I2 + 2 NaF
Na(s) + H2O(l) = NaOH(aq) + H2(g) =>
2 Na(s) + 2 H2O(l) = 2 NaOH(aq) + H2(g)
Cl2 + CaI2 = CaCl2 + I2 =>
Cl2 + CaI2 = CaCl2 + I2
Ba + O2 = BaO =>
2 Ba + O2 = 2 BaO
Fe + O2 = FeO =>
2 Fe + O2 = 2 FeO
AgNO3 + CaCl2 = AgCl + Ca(NO3)2 =>
2 AgNO3 + CaCl2 = 2 AgCl + Ca(NO3)2
K + Cl2 = KCl =>
2 K + Cl2 = 2 KCl
C2H5OH + O2 = CO2 + H2O =>
C2H5OH + 3 O2 = 2 CO2 + 3 H2O
Fe(CrO2)2 + Cl2 + K2CO3 = FeCl3 + KCrO4 + KCl + CO2 =>
2 Fe(CrO2)2 + 9 Cl2 + 8 K2CO3 = 2 FeCl3 + 4 KCrO4 + 12 KCl + 8 CO2
H2O + SO3 = H2SO4 =>
H2O + SO3 = H2SO4
NH3 + CuO = Cu + N2 + H2O =>
2 NH3 + 3 CuO = 3 Cu + N2 + 3 H2O
H2CO3 + Ca(OH)2 = CaCO3 + H2O =>
H2CO3 + Ca(OH)2 = CaCO3 + 2 H2O
Mg + H{+} = Mg{2+} + H2(g) =>
Mg + 2 H{+} = Mg{2+} + H2(g)
N2 + F2 = NF3 =>
N2 + 3 F2 = 2 NF3
Mg + Cu2CO3 = MgCO3 + Cu =>
Mg + Cu2CO3 = MgCO3 + 2 Cu
KClO4 = KCl + O2 =>
KClO4 = KCl + 2 O2
K + O2 = K2O =>
4 K + O2 = 2 K2O
Mg + O2 = MgO =>
2 Mg + O2 = 2 MgO
Ag2SO4 + NaNO3 = AgNO3 + Na2SO4 =>
Ag2SO4 + 2 NaNO3 = 2 AgNO3 + Na2SO4
FeO3(s) + CO(g) = Fe(l) + CO2(g) =>
FeO3(s) + 3 CO(g) = Fe(l) + 3 CO2(g)
Fe + S8 = FeS =>
8 Fe + S8 = 8 FeS
HCl + NaOH = NaCl + H2O =>
HCl + NaOH = NaCl + H2O
Ca + H2O = Ca(OH)2 + H2 =>
Ca + 2 H2O = Ca(OH)2 + H2
Na + NaNO3 = Na2O + N2 =>
10 Na + 2 NaNO3 = 6 Na2O + N2
H2CO3 + Al(OH)3 = H2O + Al2(CO3)3 =>
3 H2CO3 + 2 Al(OH)3 = 6 H2O + Al2(CO3)3
H3C + O2 = CO2 + OH2 =>
4 H3C + 7 O2 = 4 CO2 + 6 OH2
C4H10(g) + O2(g) = CO2(g) + H2O(l) =>
2 C4H10(g) + 13 O2(g) = 8 CO2(g) + 10 H2O(l)
NH3 = N2 + H2 =>
2 NH3 = N2 + 3 H2
Cu2O + HNO3 = Cu(NO3)2 + NO + H2O =>
3 Cu2O + 14 HNO3 = 6 Cu(NO3)2 + 2 NO + 7 H2O
AlBr3 + K = KBr + Al =>
AlBr3 + 3 K = 3 KBr + Al
Cu2O + O2 = CuO =>
2 Cu2O + O2 = 4 CuO
Mg + HCl = MgCl2 + H2 =>
Mg + 2 HCl = MgCl2 + H2
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