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4 H + 2 CaCO3 = Ca2 + 2 H2O + 2 CO2
PCl3 + O2 = POCl3 =>
2 PCl3 + O2 = 2 POCl3
SnCl2 + HgCl2 = SnCl4 + Hg2Cl2 =>
SnCl2 + 2 HgCl2 = SnCl4 + Hg2Cl2
Fe + HCl = FeCl3 + H2 =>
2 Fe + 6 HCl = 2 FeCl3 + 3 H2
N2O4 = NO2 =>
N2O4 = 2 NO2
Al + CuSO4 = Al2(SO4)3 + Cu =>
2 Al + 3 CuSO4 = Al2(SO4)3 + 3 Cu
C6H6 + O2 = CO2 + H2O =>
2 C6H6 + 15 O2 = 12 CO2 + 6 H2O
AI + H2O + NaOH = NaAIO2 + H2 =>
2 AI + 2 H2O + 2 NaOH = 2 NaAIO2 + 3 H2
NaNO2 + H2O = NaOH + HNO2 =>
NaNO2 + H2O = NaOH + HNO2
Zn(OH)2 + HNO3 = Zn(NO3)2 + H2O =>
Zn(OH)2 + 2 HNO3 = Zn(NO3)2 + 2 H2O
Cu2O + O2 = CuO =>
2 Cu2O + O2 = 4 CuO
TiBr4 + H2 = Ti + HBr =>
TiBr4 + 2 H2 = Ti + 4 HBr
HCl + NaOH = NaCl + H2O =>
HCl + NaOH = NaCl + H2O
Mg + O2 = MgO =>
2 Mg + O2 = 2 MgO
K2Cr2O7 + SnCl2 + HCl = CrCl3 + SnCl4 + KCl + H2O =>
K2Cr2O7 + 3 SnCl2 + 14 HCl = 2 CrCl3 + 3 SnCl4 + 2 KCl + 7 H2O
MgO + HCl = MgCl2 + H2O =>
MgO + 2 HCl = MgCl2 + H2O
KO2 + H2O = O2 + KOH =>
4 KO2 + 2 H2O = 3 O2 + 4 KOH
Al + HCl = AlCl3 + H2 =>
2 Al + 6 HCl = 2 AlCl3 + 3 H2
CaCO3 + H = Ca + H2O + CO2 =>
CaCO3 + 2 H = Ca + H2O + CO2
HCl + Ca(OH)2 = CaCl2 + H2O =>
2 HCl + Ca(OH)2 = CaCl2 + 2 H2O
KCl + O2 = KClO3 =>
2 KCl + 3 O2 = 2 KClO3
NH3 + O2 = HNO2 + H2O =>
2 NH3 + 3 O2 = 2 HNO2 + 2 H2O
Al + H2O = Al2O3 + H2 =>
2 Al + 3 H2O = Al2O3 + 3 H2
N2 + H2 = NH3 =>
N2 + 3 H2 = 2 NH3
H3PO4 + NaOH = NaH2PO4 + H2O =>
H3PO4 + NaOH = NaH2PO4 + H2O
Cu + I2 = CuI =>
2 Cu + I2 = 2 CuI
P4 + N2O = P4O6 + N2 =>
P4 + 6 N2O = P4O6 + 6 N2
Na2O + H2O = NaOH =>
Na2O + H2O = 2 NaOH
Al(OH)3 + HBr = AlBr3 + H2O =>
Al(OH)3 + 3 HBr = AlBr3 + 3 H2O
Cu + O2 = CuO =>
2 Cu + O2 = 2 CuO
Zn(OH)2 + HNO3 = Zn(NO3)2 + H2O =>
Zn(OH)2 + 2 HNO3 = Zn(NO3)2 + 2 H2O
C2H2Cl2 + O2 = CO2 + H2O + Cl2 =>
2 C2H2Cl2 + 5 O2 = 4 CO2 + 2 H2O + 2 Cl2
C7H6O3 + C4H6O3 = C9H8O4 =>
11 C7H6O3 + C4H6O3 = 9 C9H8O4
Cu + Ag{+} = Cu{2+} + Ag =>
Cu + 2 Ag{+} = Cu{2+} + 2 Ag
HClO3 = HClO4 + ClO2 + H2O =>
3 HClO3 = HClO4 + 2 ClO2 + H2O
CH3(CH2)4CH3 + O2 = CO2 + H2O =>
2 CH3(CH2)4CH3 + 19 O2 = 12 CO2 + 14 H2O
MnO2 + Al = Al2O3 + Mn =>
3 MnO2 + 4 Al = 2 Al2O3 + 3 Mn
AsF3 + C2Cl6 = AsCl3 + C2Cl2F4 =>
4 AsF3 + 3 C2Cl6 = 4 AsCl3 + 3 C2Cl2F4
CO + H2O = CO2 + H2 =>
CO + H2O = CO2 + H2
AgNO3 + Cu = Cu(NO3)2 + Ag =>
2 AgNO3 + Cu = Cu(NO3)2 + 2 Ag
Al + Fe3O4 = Al2O3 + Fe =>
8 Al + 3 Fe3O4 = 4 Al2O3 + 9 Fe
CO + H2O = CO2 + H2 =>
CO + H2O = CO2 + H2
Na2O + H2O = NaOH =>
Na2O + H2O = 2 NaOH
Hf + N2 = Hf3N4 =>
3 Hf + 2 N2 = Hf3N4
Al + Fe3O4 = Al2O3 + Fe =>
8 Al + 3 Fe3O4 = 4 Al2O3 + 9 Fe
C2H3Br3 + O2 = CO2 + H2O + Br2 =>
4 C2H3Br3 + 11 O2 = 8 CO2 + 6 H2O + 6 Br2
S2O3{-2} + I2 + OH{-} = SO4{-2} + I{-} + H2O =>
S2O3{-2} + 4 I2 + 10 OH{-} = 2 SO4{-2} + 8 I{-} + 5 H2O
Cs2O + H2O = CsOH =>
Cs2O + H2O = 2 CsOH
NaHCO3 + NaOH = Na2CO3 + H2O =>
NaHCO3 + NaOH = Na2CO3 + H2O
CO + H2 = C8H18 + H2O =>
8 CO + 17 H2 = C8H18 + 8 H2O
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