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2 Pb3O4(s) = 6 PbO(s) + O2(g)
C + O = CO =>
C + O = CO
Pb(No3)2 + CuSo4 = PbSo4 + Cu(No3)2 =>
Pb(No3)2 + CuSo4 = PbSo4 + Cu(No3)2
S + O = SO3 =>
S + 3 O = SO3
C11H11O3 + Na = C11H11O3Na =>
C11H11O3 + Na = C11H11O3Na
NaOH + H2SO4 = Na2SO4 + H2O =>
2 NaOH + H2SO4 = Na2SO4 + 2 H2O
MgCO3 + H2SO4 = MgSO4 + H2O + CO2 =>
MgCO3 + H2SO4 = MgSO4 + H2O + CO2
H + O = H2O =>
2 H + O = H2O
Na + P4 = Na3P =>
12 Na + P4 = 4 Na3P
C + O2 = CO =>
2 C + O2 = 2 CO
Na2CO3 + HCl = NaCl + H2O + CO2 =>
Na2CO3 + 2 HCl = 2 NaCl + H2O + CO2
CuCO3 = CuO + CO2 =>
CuCO3 = CuO + CO2
Zn + HSO = ZnSO + H =>
Zn + HSO = ZnSO + H
N2 + O2 = NO =>
N2 + O2 = 2 NO
CO2 + H2O = C12H22O11 + O2 =>
12 CO2 + 11 H2O = C12H22O11 + 12 O2
ZnS + O2 = ZnO + SO2 =>
2 ZnS + 3 O2 = 2 ZnO + 2 SO2
Na2SO4 + H2O = Na + H2SO4 + O2 =>
2 Na2SO4 + 2 H2O = 4 Na + 2 H2SO4 + O2
Al + O2 = Al2O3 =>
4 Al + 3 O2 = 2 Al2O3
Ca + HCl = CaCl + H =>
Ca + HCl = CaCl + H
Ca + HCl = CaCl + H2 =>
2 Ca + 2 HCl = 2 CaCl + H2
Mg + N2 = Mg3N2 =>
3 Mg + N2 = Mg3N2
Al + N2 = AlN =>
2 Al + N2 = 2 AlN
NO + O2 = NO2 =>
2 NO + O2 = 2 NO2
C6H6 + O2 = CO2 + H2O =>
2 C6H6 + 15 O2 = 12 CO2 + 6 H2O
Cl2 + Ba(OH)2 = Ba(ClO3)2 + BaCl2 + H2O =>
6 Cl2 + 6 Ba(OH)2 = Ba(ClO3)2 + 5 BaCl2 + 6 H2O
S02 + O2 = SO3 =>
S02 + 3 O2 = 2 SO3
Na + H2O = NaOH + H2 =>
2 Na + 2 H2O = 2 NaOH + H2
C6H6 + O2 = CO2 + H2O =>
2 C6H6 + 15 O2 = 12 CO2 + 6 H2O
SO2 + O2 = SO3 =>
2 SO2 + O2 = 2 SO3
Zn + HCl = ZnCl2 + H2 =>
Zn + 2 HCl = ZnCl2 + H2
Ag2S + HNO3 = AgNO3 + NO + S + H2O =>
3 Ag2S + 8 HNO3 = 6 AgNO3 + 2 NO + 3 S + 4 H2O
H2 + Cl2 = HCl =>
H2 + Cl2 = 2 HCl
Fe + Cl2 = FeCl3 =>
2 Fe + 3 Cl2 = 2 FeCl3
Zn + H2SO4 = ZnSO4 + H2 =>
Zn + H2SO4 = ZnSO4 + H2
Na2S + Cl2 + H2O = Na2SO4 + HCl =>
Na2S + 4 Cl2 + 4 H2O = Na2SO4 + 8 HCl
NaHCO3 + CH3COOH = NaOCOCH3 + CO2 + H2O =>
NaHCO3 + CH3COOH = NaOCOCH3 + CO2 + H2O
S + O2 = SO3 =>
2 S + 3 O2 = 2 SO3
C + O2 = CO =>
2 C + O2 = 2 CO
C + O2 = CO2 =>
C + O2 = CO2
SO3 + H2O = H2SO4 =>
SO3 + H2O = H2SO4
PhCH3 + KMnO4 + H2SO4 = PhCOOH + K2SO4 + MnSO4 + H2O =>
5 PhCH3 + 6 KMnO4 + 9 H2SO4 = 5 PhCOOH + 3 K2SO4 + 6 MnSO4 + 14 H2O
H2S + Cl2 = S + HCl =>
H2S + Cl2 = S + 2 HCl
Fe + H2SO4 = Fe2(SO4)3 + H2 =>
2 Fe + 3 H2SO4 = Fe2(SO4)3 + 3 H2
FeCl2 + Cl2 = FeCl3 =>
2 FeCl2 + Cl2 = 2 FeCl3
H2 + F2 = HF =>
H2 + F2 = 2 HF
CO2 + C = CO =>
CO2 + C = 2 CO
KHCO3 = K2CO3 + H2O + CO2 =>
2 KHCO3 = K2CO3 + H2O + CO2
Ca(OH)2 + H2SO4 = CaSO4 + H2O =>
Ca(OH)2 + H2SO4 = CaSO4 + 2 H2O
Ca + HCl = CaCl2 + H2 =>
Ca + 2 HCl = CaCl2 + H2
K + CO2 = K2O + C =>
4 K + CO2 = 2 K2O + C
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