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2 Cu + O2 = 2 CuO
CuCO3 = CuO + CO2 =>
CuCO3 = CuO + CO2
CuO + HNO3 = Cu(NO3)2 + H2O =>
CuO + 2 HNO3 = Cu(NO3)2 + H2O
Fe2O3 + C = Fe + CO2 =>
2 Fe2O3 + 3 C = 4 Fe + 3 CO2
K + HBr = KBr + H2 =>
2 K + 2 HBr = 2 KBr + H2
CaCO3(s) = CaO(s) + CO2(g) =>
CaCO3(s) = CaO(s) + CO2(g)
Mg + O2 = MgO =>
2 Mg + O2 = 2 MgO
CaCO3(s) = CaO(s) + CO2(g) =>
CaCO3(s) = CaO(s) + CO2(g)
K + HBr = KBr + H2 =>
2 K + 2 HBr = 2 KBr + H2
HCN + CuSO4 = H2SO4 + Cu(CN)2 =>
2 HCN + CuSO4 = H2SO4 + Cu(CN)2
N2 + H2 = NH3 =>
N2 + 3 H2 = 2 NH3
Ca(OH)2 + HNO3 = Ca(NO3)2 + H2O =>
Ca(OH)2 + 2 HNO3 = Ca(NO3)2 + 2 H2O
C4H10 + O2 = CO2 + H2O =>
2 C4H10 + 13 O2 = 8 CO2 + 10 H2O
CaCO3(s) = CaO(s) + CO2(g) =>
CaCO3(s) = CaO(s) + CO2(g)
N2O5 = N2 + O2 =>
2 N2O5 = 2 N2 + 5 O2
K + HBr = KBr + H2 =>
2 K + 2 HBr = 2 KBr + H2
Fe(NO3)3*9H2O + KOH = Fe2O3 + KNO3 + H2O =>
2 Fe(NO3)3*9H2O + 6 KOH = Fe2O3 + 6 KNO3 + 21 H2O
Ag2O = Ag + O2 =>
2 Ag2O = 4 Ag + O2
CO2 + H2O = C2H5OH + O2 =>
2 CO2 + 3 H2O = C2H5OH + 3 O2
CO(g) + NO2(g) = CO2(g) + NO(g) =>
CO(g) + NO2(g) = CO2(g) + NO(g)
Li + H2O = LiOH + H2 =>
2 Li + 2 H2O = 2 LiOH + H2
Ca(OH)2 + HNO3 = Ca(NO3)2 + H2O =>
Ca(OH)2 + 2 HNO3 = Ca(NO3)2 + 2 H2O
Ba3N2 + H2O = Ba(OH)2 + NH3 =>
Ba3N2 + 6 H2O = 3 Ba(OH)2 + 2 NH3
Hg + H2SO4 = HgSO4 + H2 =>
Hg + H2SO4 = HgSO4 + H2
Zn + H2O = ZnO + H2 =>
Zn + H2O = ZnO + H2
Fe2O3 + CO = Fe + CO2 =>
Fe2O3 + 3 CO = 2 Fe + 3 CO2
CH4 + O2 = CO2 + H2O =>
CH4 + 2 O2 = CO2 + 2 H2O
Al(OH)3 + H2SO4 = Al2(SO4)3 + H2O =>
2 Al(OH)3 + 3 H2SO4 = Al2(SO4)3 + 6 H2O
Li + NH3 = LiNH2 + H2 =>
2 Li + 2 NH3 = 2 LiNH2 + H2
Pb(NO3)2 + NaOH = Pb(OH)2 + NaNO3 =>
Pb(NO3)2 + 2 NaOH = Pb(OH)2 + 2 NaNO3
Fe + Cl2 = FeCl3 =>
2 Fe + 3 Cl2 = 2 FeCl3
(CH3(CH2)6CH3) + O2 = CO2 + H2O =>
2(CH3(CH2)6CH3) + 25 O2 = 16 CO2 + 18 H2O
Cr2O7{-2} + H{+} + I2{-} = Cr{+3} + H2O + I2 =>
Cr2O7{-2} + 14 H{+} + 6 I2{-} = 2 Cr{+3} + 7 H2O + 6 I2
Fe2O3 + C = Fe + CO2 =>
2 Fe2O3 + 3 C = 4 Fe + 3 CO2
Ca(OH)2 + HNO3 = Ca(NO3)2 + H2O =>
Ca(OH)2 + 2 HNO3 = Ca(NO3)2 + 2 H2O
Na + OH = NaOH =>
Na + OH = NaOH
CuO + C = Cu + CO2 =>
2 CuO + C = 2 Cu + CO2
Al + O2 = Al2O3 =>
4 Al + 3 O2 = 2 Al2O3
C3H8 + O2 = CO2 + H2O =>
C3H8 + 5 O2 = 3 CO2 + 4 H2O
C4H10 + O2 = CO2 + H2O =>
2 C4H10 + 13 O2 = 8 CO2 + 10 H2O
NaOH + H2S = Na2S + H2O =>
2 NaOH + H2S = Na2S + 2 H2O
P2O3 + H2O = H3PO3 =>
P2O3 + 3 H2O = 2 H3PO3
C8H18 + O2 = CO2 + H2O =>
2 C8H18 + 25 O2 = 16 CO2 + 18 H2O
SO2 + H2O = H2SO3 =>
SO2 + H2O = H2SO3
CaCO3 + HCl = CaCl2 + CO2 + H2O =>
CaCO3 + 2 HCl = CaCl2 + CO2 + H2O
H2O + O2 = H2O2 =>
2 H2O + O2 = 2 H2O2
Fe2O3(s) + C(g) = Fe(s) + CO2(g) =>
2 Fe2O3(s) + 3 C(g) = 4 Fe(s) + 3 CO2(g)
K2S + HCl = KCl + H2S =>
K2S + 2 HCl = 2 KCl + H2S
NaO + H2O = NaOH + OH =>
NaO + H2O = NaOH + OH
Mg + HCl = MgCl2 + H2 =>
Mg + 2 HCl = MgCl2 + H2
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