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Cu + 2 HCl = CuCl2 + H2
Se + Br = SeBr =>
Se + Br = SeBr
MnO2 + KOH + O2 = K2MnO4 + H2O =>
2 MnO2 + 4 KOH + O2 = 2 K2MnO4 + 2 H2O
HCl + CaO = CaCl2 + H2O =>
2 HCl + CaO = CaCl2 + H2O
CO2 + H2O = C6H12O6 + O2 =>
6 CO2 + 6 H2O = C6H12O6 + 6 O2
CH4 + O2 = CO2 + H2O =>
CH4 + 2 O2 = CO2 + 2 H2O
Zn + AgNO3 = Zn(NO3)2 + Ag =>
Zn + 2 AgNO3 = Zn(NO3)2 + 2 Ag
MnO2 + Al = Al2O3 + Mn =>
3 MnO2 + 4 Al = 2 Al2O3 + 3 Mn
H2O2 + H{+} + Fe{2+} = H2O + Fe{3+} =>
H2O2 + 2 H{+} + 2 Fe{2+} = 2 H2O + 2 Fe{3+}
NaHCO3 = Na2CO3 + H2O + CO2 =>
2 NaHCO3 = Na2CO3 + H2O + CO2
SiCl4 + H2O = H4SiO4 + HCl =>
SiCl4 + 4 H2O = H4SiO4 + 4 HCl
SO2 + H2S = H2O + S =>
SO2 + 2 H2S = 2 H2O + 3 S
Sb(s) + O2(g) = Sb2O5 =>
4 Sb(s) + 5 O2(g) = 2 Sb2O5
MG + HCl = MGCl2 + H2 =>
MG + 2 HCl = MGCl2 + H2
Na2CO3 + HCl = NaCl + H2O + CO2 =>
Na2CO3 + 2 HCl = 2 NaCl + H2O + CO2
Pb(s) + AgNO3(aq) = Pb(NO3)2(aq) + Ag(s) =>
Pb(s) + 2 AgNO3(aq) = Pb(NO3)2(aq) + 2 Ag(s)
Mg(s) + HCl(aq) = MgCl2(aq) + H2(g) =>
Mg(s) + 2 HCl(aq) = MgCl2(aq) + H2(g)
H3PO4 = H4P2O7 + H2O =>
2 H3PO4 = H4P2O7 + H2O
NaOH + H2SO4 = Na2SO4 + H2O =>
2 NaOH + H2SO4 = Na2SO4 + 2 H2O
PbO + C = Pb + CO2 =>
2 PbO + C = 2 Pb + CO2
CO2 + H2 = CO + H2O =>
CO2 + H2 = CO + H2O
Al3 + CuCl = AlCl3 + Cu =>
Al3 + 9 CuCl = 3 AlCl3 + 9 Cu
CO2 + NH3 = OC(NH2)2 + H2O =>
CO2 + 2 NH3 = OC(NH2)2 + H2O
C12H22O11 + K2CrO4 + H2SO4 = CO2 + Cr2(SO4)3 + K2SO4 + H2O =>
C12H22O11 + 16 K2CrO4 + 40 H2SO4 = 12 CO2 + 8 Cr2(SO4)3 + 16 K2SO4 + 51 H2O
Mg + O2 = MgO =>
2 Mg + O2 = 2 MgO
CuO + C = Cu + CO2 =>
2 CuO + C = 2 Cu + CO2
NaOH + C9H10O2 = NaC9H10O2 + OH =>
NaOH + C9H10O2 = NaC9H10O2 + OH
Ni(NO3)2 + NaOH = Ni(OH)2 + NaNO3 =>
Ni(NO3)2 + 2 NaOH = Ni(OH)2 + 2 NaNO3
AG + HNO3 = AGNO3 + NO + H2O =>
3 AG + 4 HNO3 = 3 AGNO3 + NO + 2 H2O
H2SO4 + NaOH = H2O + Na2SO4 =>
H2SO4 + 2 NaOH = 2 H2O + Na2SO4
TiCl4 + H2O = TiO2 + HCl =>
TiCl4 + 2 H2O = TiO2 + 4 HCl
Ca2 + N2 = Ca3N2 =>
3 Ca2 + 2 N2 = 2 Ca3N2
Ca + N2 = Ca3N2 =>
3 Ca + N2 = Ca3N2
Al(OH)3 + H2SO4 = Al2(SO4)3 + H2O =>
2 Al(OH)3 + 3 H2SO4 = Al2(SO4)3 + 6 H2O
CuO + C = Cu2O + CO2 =>
4 CuO + C = 2 Cu2O + CO2
K2MnO4 + HNO3 = MnO2 + KMnO4 + KNO3 + H2O =>
3 K2MnO4 + 4 HNO3 = MnO2 + 2 KMnO4 + 4 KNO3 + 2 H2O
C6H12O6 + NO3{-} + H{+} + e = C5H7O2N + H2O =>
5 C6H12O6 + 6 NO3{-} + 54 H{+} + 48e = 6 C5H7O2N + 36 H2O
BaCl2 + K2S = BaS + KCl =>
BaCl2 + K2S = BaS + 2 KCl
HNO3 + H2S = NO2 + H2O + S =>
2 HNO3 + H2S = 2 NO2 + 2 H2O + S
Cu + HNO3 = Cu(NO3)2 + NO2 + H2O =>
Cu + 4 HNO3 = Cu(NO3)2 + 2 NO2 + 2 H2O
Pb(NO3)2 = PbO + NO2 + O2 =>
2 Pb(NO3)2 = 2 PbO + 4 NO2 + O2
Magnesium + hydrochloricacid = Magnesiumchloride + hydrogen =>
Mg + 2 HCl = MgCl2 + H2
K + C2H5OH = CH3CH2OK + H2 =>
2 K + 2 C2H5OH = 2 CH3CH2OK + H2
NO2 + H2O = HNO3 + NO =>
3 NO2 + H2O = 2 HNO3 + NO
Na + H2O = NaOH + H2 =>
2 Na + 2 H2O = 2 NaOH + H2
Fe2(SO4)3 + KOH = K2SO4 + Fe(OH)3 =>
Fe2(SO4)3 + 6 KOH = 3 K2SO4 + 2 Fe(OH)3
CaCl2 + Na3PO4 = Ca3(PO4)2 + NaCl =>
3 CaCl2 + 2 Na3PO4 = Ca3(PO4)2 + 6 NaCl
NH4OH + Cu(OH)2 + (NH4)2SO4 = [Cu(NH3)4]SO4 + H2O =>
2 NH4OH + Cu(OH)2 + (NH4)2SO4 = [Cu(NH3)4]SO4 + 4 H2O
H2SO4 + HI = H2S + I2 + H2O =>
H2SO4 + 8 HI = H2S + 4 I2 + 4 H2O
CaO + HCl = CaCl2 + H2O =>
CaO + 2 HCl = CaCl2 + H2O
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