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2 PbS + 3 O2 = 2 PbO + 2 SO2
Ca + H2O = Ca(OH)2 + H2 =>
Ca + 2 H2O = Ca(OH)2 + H2
Cu2CO3(OH)2 = CuO + CO2 + H2O =>
Cu2CO3(OH)2 = 2 CuO + CO2 + H2O
Na2CO3 = Na2O + CO2 =>
Na2CO3 = Na2O + CO2
KOH + HCl = KCl + H2O =>
KOH + HCl = KCl + H2O
HCl(aq) + NaOH(aq) = NaCl(aq) + H2O(l) =>
HCl(aq) + NaOH(aq) = NaCl(aq) + H2O(l)
CH2O + H2 = CH3OH =>
CH2O + H2 = CH3OH
H2SiCl2 + H2O = H8Si4O4 + HCl =>
4 H2SiCl2 + 4 H2O = H8Si4O4 + 8 HCl
NH4Cl + CaO2H2 = CaCl2 + NH3 + H2O =>
2 NH4Cl + CaO2H2 = CaCl2 + 2 NH3 + 2 H2O
P4(s) + Ca(s) = Ca3P2(s) =>
P4(s) + 6 Ca(s) = 2 Ca3P2(s)
MgCl2 + Na3PO4 = Mg3(PO4)2 + NaCl =>
3 MgCl2 + 2 Na3PO4 = Mg3(PO4)2 + 6 NaCl
Al + Pb(NO3)2 = Al(NO3)3 + Pb =>
2 Al + 3 Pb(NO3)2 = 2 Al(NO3)3 + 3 Pb
C6H12O6 + O2 = CO2 + H2O =>
C6H12O6 + 6 O2 = 6 CO2 + 6 H2O
NaOH + C2H4O2 = NaC2H3O2 + H2O =>
NaOH + C2H4O2 = NaC2H3O2 + H2O
H2SO4 + NH4OH = H2O + (NH4)2SO4 =>
H2SO4 + 2 NH4OH = 2 H2O + (NH4)2SO4
N2 + H2 = NH3 =>
N2 + 3 H2 = 2 NH3
FeCl3 + NaOH = Fe(OH)3 + NaCl =>
FeCl3 + 3 NaOH = Fe(OH)3 + 3 NaCl
CaCO3 + NaCl = Na2CO3 + CaCl2 =>
CaCO3 + 2 NaCl = Na2CO3 + CaCl2
Na2S + Cu(NO3)2 = NaNO3 + CuS =>
Na2S + Cu(NO3)2 = 2 NaNO3 + CuS
N2 + H2 = NH3 =>
N2 + 3 H2 = 2 NH3
Ca + H2O = Ca(OH)2 + H2 =>
Ca + 2 H2O = Ca(OH)2 + H2
CH4 + O2 = CO + H2O =>
2 CH4 + 3 O2 = 2 CO + 4 H2O
C4H10 + O2 = CO2 + H2O =>
2 C4H10 + 13 O2 = 8 CO2 + 10 H2O
Ca + O2 = CaO =>
2 Ca + O2 = 2 CaO
BiO3{-} + Cr{3+} + H{+} = Cr2O7{2-} + Bi{3+} + H2O =>
3 BiO3{-} + 2 Cr{3+} + 4 H{+} = Cr2O7{2-} + 3 Bi{3+} + 2 H2O
Sn + NaOH = Na2SnO2 + H2 =>
Sn + 2 NaOH = Na2SnO2 + H2
Fe + O2 = Fe2O3 =>
4 Fe + 3 O2 = 2 Fe2O3
HCl + Ba(OH)2 = BaCl2 + H2O =>
2 HCl + Ba(OH)2 = BaCl2 + 2 H2O
C3H8 + O2 = CO2 + H2O =>
C3H8 + 5 O2 = 3 CO2 + 4 H2O
Cu(NO3)2 + KSCN + C5H5N = Cu(C5H5N)2(NCS)2 + KNO3 =>
Cu(NO3)2 + 2 KSCN + 2 C5H5N = Cu(C5H5N)2(NCS)2 + 2 KNO3
Pb(OH)2 + HCl = H2O + PbCl2 =>
Pb(OH)2 + 2 HCl = 2 H2O + PbCl2
AgNO3 + NaCl = AgCl + NaNO3 =>
AgNO3 + NaCl = AgCl + NaNO3
C3H8 + O2 = CO2 + H2O =>
C3H8 + 5 O2 = 3 CO2 + 4 H2O
CH2O + H2 = CH3OH =>
CH2O + H2 = CH3OH
NaHCO3 + HCl = NaCl + H2O + CO2 =>
NaHCO3 + HCl = NaCl + H2O + CO2
C2H8 + O2 = CO2 + H2O =>
C2H8 + 4 O2 = 2 CO2 + 4 H2O
Li3PO4 = Li + P + O2 =>
Li3PO4 = 3 Li + P + 2 O2
CH4 + Cl2 = CHCl3 + HCl =>
CH4 + 3 Cl2 = CHCl3 + 3 HCl
H2S + O2 = SO2 + H2O =>
2 H2S + 3 O2 = 2 SO2 + 2 H2O
Al2(SO4)3 + Ca(OH)2 = Al(OH)3 + CaSO4 =>
Al2(SO4)3 + 3 Ca(OH)2 = 2 Al(OH)3 + 3 CaSO4
CuO + H2 = Cu + H2O =>
CuO + H2 = Cu + H2O
C + O = CO2 =>
C + 2 O = CO2
C7H6O2 + O2 = CO2 + H2O =>
2 C7H6O2 + 15 O2 = 14 CO2 + 6 H2O
Mg + H2SO4 = MgSO4 + H2 =>
Mg + H2SO4 = MgSO4 + H2
H2S + O2 = SO2 + H2O =>
2 H2S + 3 O2 = 2 SO2 + 2 H2O
CuO + H2 = Cu + H2O =>
CuO + H2 = Cu + H2O
ZnCl2 + Na2CO3 = ZnCO3 + NaCl =>
ZnCl2 + Na2CO3 = ZnCO3 + 2 NaCl
Li + H2O = LiOH + H2 =>
2 Li + 2 H2O = 2 LiOH + H2
Cu + H2SO4 = CuSO4 + H2O + SO2 =>
Cu + 2 H2SO4 = CuSO4 + 2 H2O + SO2
OF2 + H2O = O2 + HF =>
OF2 + H2O = O2 + 2 HF
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