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CH4 + 2 O2 = CO2 + 2 H2O
Al + O2 = Al2O3 =>
4 Al + 3 O2 = 2 Al2O3
HgCl + I = HgI + Cl =>
HgCl + I = HgI + Cl
Na2CO3 + HCl = NaCl + H2O + CO2 =>
Na2CO3 + 2 HCl = 2 NaCl + H2O + CO2
NaNO3 + NaI + H2O = NO + I2 + NaOH =>
2 NaNO3 + 6 NaI + 4 H2O = 2 NO + 3 I2 + 8 NaOH
NH4Cl + Pb(NO3)2 = NH4NO3 + PbCl2 =>
2 NH4Cl + Pb(NO3)2 = 2 NH4NO3 + PbCl2
BaBr2 + K2CO3 = BaCO3 + KBr =>
BaBr2 + K2CO3 = BaCO3 + 2 KBr
CaBr2 + K2(CO3) = Ca(CO3) + KBr =>
CaBr2 + K2(CO3) = Ca(CO3) + 2 KBr
HgCl + I = HgI + Cl =>
HgCl + I = HgI + Cl
NH3 + HOCl = NH2Cl + H2O =>
NH3 + HOCl = NH2Cl + H2O
HgCl + I = HgI + Cl =>
HgCl + I = HgI + Cl
Na2O2 + H2O = NaOH + O2 =>
2 Na2O2 + 2 H2O = 4 NaOH + O2
HgCl2 + I = HgI + Cl =>
HgCl2 + I = HgI + 2 Cl
Al(OH)3 + HNO3 = Al(NO3)3 + H2O =>
Al(OH)3 + 3 HNO3 = Al(NO3)3 + 3 H2O
HgCl2 + I = HgI + Cl =>
HgCl2 + I = HgI + 2 Cl
NH3 = N2 + H2 =>
2 NH3 = N2 + 3 H2
HgCl2 + I = HgI2 + Cl =>
HgCl2 + 2 I = HgI2 + 2 Cl
C3H8 + H2O = H2 + CO2 =>
C3H8 + 6 H2O = 10 H2 + 3 CO2
P + O2 = P2O5 =>
4 P + 5 O2 = 2 P2O5
C + H2O = CO + H2 =>
C + H2O = CO + H2
Pb(NO3)2 + Na2SO4 = NaNO3 + PbSO4 =>
Pb(NO3)2 + Na2SO4 = 2 NaNO3 + PbSO4
CH3(CH2)6CH3 + O2 = CO2 + H2O =>
2 CH3(CH2)6CH3 + 25 O2 = 16 CO2 + 18 H2O
HCl + KMnO4 = Cl2 + KCl + MnCl2 + H2O =>
16 HCl + 2 KMnO4 = 5 Cl2 + 2 KCl + 2 MnCl2 + 8 H2O
Na2CO3 + Cu(NO3)2 = Na2(NO3)2 + CuCO3 =>
Na2CO3 + Cu(NO3)2 = Na2(NO3)2 + CuCO3
KMnO4 + NaNO2 + H2O = MnO2 + NaNO3 + KOH =>
2 KMnO4 + 3 NaNO2 + H2O = 2 MnO2 + 3 NaNO3 + 2 KOH
C3H8 + H2O = H2 + CO2 =>
C3H8 + 6 H2O = 10 H2 + 3 CO2
H2O = H + O2 =>
2 H2O = 4 H + O2
Ca(AlO2)2 + HCl = AlCl3 + CaCl2 + H2O =>
Ca(AlO2)2 + 8 HCl = 2 AlCl3 + CaCl2 + 4 H2O
KMnO4 + NO + H2SO4 = HNO3 + K2SO4 + MnSO4 + H2O =>
6 KMnO4 + 10 NO + 9 H2SO4 = 10 HNO3 + 3 K2SO4 + 6 MnSO4 + 4 H2O
Mg + Cl2 = MgCl =>
2 Mg + Cl2 = 2 MgCl
K + H2O = KOH + H2 =>
2 K + 2 H2O = 2 KOH + H2
KBr + KMnO4 + H2SO4 = Br2 + K2SO4 + MnSO4 + H2O =>
10 KBr + 2 KMnO4 + 8 H2SO4 = 5 Br2 + 6 K2SO4 + 2 MnSO4 + 8 H2O
Pb + K4[Fe(CN)6] = Pb(CN) + K + Fe =>
6 Pb + K4[Fe(CN)6] = 6 Pb(CN) + 4 K + Fe
C8H11N + SO2 = C8H11NO2S =>
C8H11N + SO2 = C8H11NO2S
C2H6 + O2 = CO2 + H2O =>
2 C2H6 + 7 O2 = 4 CO2 + 6 H2O
Al(OH)3 + C = Al + CO2 + H2O =>
4 Al(OH)3 + 3 C = 4 Al + 3 CO2 + 6 H2O
Pb2 + K4[Fe(CN)6] = Pb(CN) + K + Fe =>
3 Pb2 + K4[Fe(CN)6] = 6 Pb(CN) + 4 K + Fe
As2S5 + HNO3 = H3AsO4 + H2SO4 + NO2 + H2O =>
As2S5 + 40 HNO3 = 2 H3AsO4 + 5 H2SO4 + 40 NO2 + 12 H2O
BaO + H2O = Ba(OH)2 =>
BaO + H2O = Ba(OH)2
Pb2 + K4[Fe(CN)6] = Pb(CN)2 + K + Fe =>
3 Pb2 + 2 K4[Fe(CN)6] = 6 Pb(CN)2 + 8 K + 2 Fe
Na + H2O = NaOH + H2 =>
2 Na + 2 H2O = 2 NaOH + H2
Na3PO4 + Cu(NO3)2 = Na(NO3) + Cu3(PO4)2 =>
2 Na3PO4 + 3 Cu(NO3)2 = 6 Na(NO3) + Cu3(PO4)2
Pb + PbO2 + H2SO4 = PbSO4 + H2O =>
Pb + PbO2 + 2 H2SO4 = 2 PbSO4 + 2 H2O
NaOH + HCl = NaCl + H2O =>
NaOH + HCl = NaCl + H2O
Pb(NO3)2 + Na2CO3 = NaNO3 + PbCO3 =>
Pb(NO3)2 + Na2CO3 = 2 NaNO3 + PbCO3
Pb2 + K4[Fe(CN)6] = Pb(CN) + K + Fe =>
3 Pb2 + K4[Fe(CN)6] = 6 Pb(CN) + 4 K + Fe
SnO2 + H2 = Sn + H2O =>
SnO2 + 2 H2 = Sn + 2 H2O
Zn + H3PO4 = Zn3(PO4)2 + H2 =>
3 Zn + 2 H3PO4 = Zn3(PO4)2 + 3 H2
H2SO4 + NaOH = Na2SO4 + H2O =>
H2SO4 + 2 NaOH = Na2SO4 + 2 H2O
Na + H2O = NaOH + H2 =>
2 Na + 2 H2O = 2 NaOH + H2
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