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Cu2{+} + 2 Zn = 2 Cu + Zn2{+}
H3AsO4 + Co(OH)3 = Co3(AsO4)3 + H2O =>
3 H3AsO4 + 3 Co(OH)3 = Co3(AsO4)3 + 9 H2O
HCl + Na3C6H5O7 = NaCl + C6H8O7 =>
3 HCl + Na3C6H5O7 = 3 NaCl + C6H8O7
ClH + Zn = ZnCl + H2 =>
2 ClH + 2 Zn = 2 ZnCl + H2
Ca + S = Ca3S4 =>
3 Ca + 4 S = Ca3S4
Cu3AsS4 + O2 = CuS + As2O3 + SO2 =>
4 Cu3AsS4 + 7 O2 = 12 CuS + 2 As2O3 + 4 SO2
Na + S8 = Na2S =>
16 Na + S8 = 8 Na2S
K2SO4 + BaN2O6 = K2N2O6 + BaSO4 =>
K2SO4 + BaN2O6 = K2N2O6 + BaSO4
Sn + NaOH = Sn(OH)2 + Na =>
Sn + 2 NaOH = Sn(OH)2 + 2 Na
Fe3Al2Si3O12 = FeO + Al2O3 + SiO2 =>
Fe3Al2Si3O12 = 3 FeO + Al2O3 + 3 SiO2
Mg2 + H2O = H2 + Mg2O =>
Mg2 + H2O = H2 + Mg2O
Sc2O3 + H2O = Sc(OH)3 =>
Sc2O3 + 3 H2O = 2 Sc(OH)3
La(HCO3)3 + H2SO4 = La2(SO4)3 + H2O + CO2 =>
2 La(HCO3)3 + 3 H2SO4 = La2(SO4)3 + 6 H2O + 6 CO2
H2C2O4 + KMnO4 = CO2 + MnO + K2O + H2O =>
5 H2C2O4 + 2 KMnO4 = 10 CO2 + 2 MnO + K2O + 5 H2O
Fe2O3(s) + Al(s) = Al2O3(s) + Fe(s) =>
Fe2O3(s) + 2 Al(s) = Al2O3(s) + 2 Fe(s)
HCN + CuSO4 = H2SO4 + Cu(CN)2 =>
2 HCN + CuSO4 = H2SO4 + Cu(CN)2
C3H8(s) + O2(g) = CO2 + H2O =>
C3H8(s) + 5 O2(g) = 3 CO2 + 4 H2O
CaO + HNO3 = Ca(NO3)2 + H2O =>
CaO + 2 HNO3 = Ca(NO3)2 + H2O
Al + NiSO4 = Al6(SO4)6 + Ni =>
6 Al + 6 NiSO4 = Al6(SO4)6 + 6 Ni
CaCO3(S) + HCl(g) = CaCl2(S) + H2O(l) + CO2(g) =>
CaCO3(S) + 2 HCl(g) = CaCl2(S) + H2O(l) + CO2(g)
Na2CO3 + Be(OH)2 = NaOH + BeCO3 =>
Na2CO3 + Be(OH)2 = 2 NaOH + BeCO3
Cu + Cl2 = CuCl2 =>
Cu + Cl2 = CuCl2
C18H38 = C12H26 + C3H6 =>
C18H38 = C12H26 + 2 C3H6
H3PO4 + HCl = PCl5 + H2O =>
H3PO4 + 5 HCl = PCl5 + 4 H2O
K(s) + O2(g) = K2O(s) =>
4 K(s) + O2(g) = 2 K2O(s)
Cr + Pb(NO3)2 = Cr(NO3)3 + Pb =>
2 Cr + 3 Pb(NO3)2 = 2 Cr(NO3)3 + 3 Pb
KNO2 + H2O2 + H2SO4 = K2SO4 + NO2 + H2O =>
2 KNO2 + H2O2 + H2SO4 = K2SO4 + 2 NO2 + 2 H2O
K + AlCl = KAlCl =>
K + AlCl = KAlCl
Ba3N2 + H2O = Ba(OH)2 + NH3 =>
Ba3N2 + 6 H2O = 3 Ba(OH)2 + 2 NH3
HCl + NaOH = NaCl + H2O =>
HCl + NaOH = NaCl + H2O
FeO + CO = Fe + CO2 =>
FeO + CO = Fe + CO2
Cu2O(s) + CuS(s) = Cu(s) + SO2(g) =>
2 Cu2O(s) + CuS(s) = 5 Cu(s) + SO2(g)
Al + FeO = Al2O3 + Fe =>
2 Al + 3 FeO = Al2O3 + 3 Fe
Ca + Al(NO3)3 = Ca(NO3)2 + Al =>
3 Ca + 2 Al(NO3)3 = 3 Ca(NO3)2 + 2 Al
ZnCl2 + (NH4)2S = ZnS + NH4Cl =>
ZnCl2 + (NH4)2S = ZnS + 2 NH4Cl
CaCl2 + AgSO4 = SO4Cl2 + AgCa =>
CaCl2 + AgSO4 = SO4Cl2 + AgCa
NaBr + Cl2 = NaCl + Br2 =>
2 NaBr + Cl2 = 2 NaCl + Br2
Ca(OH)2 + Cl2O7 = CaO + Cl(OH)7 =>
7 Ca(OH)2 + Cl2O7 = 7 CaO + 2 Cl(OH)7
CH4O + PCl5 = CH3Cl + POCl3 + H2O =>
2 CH4O + PCl5 = 2 CH3Cl + POCl3 + H2O
Na2SO4 + BaCl2 = NaCl + Ba(SO4) =>
Na2SO4 + BaCl2 = 2 NaCl + Ba(SO4)
HNo3{-2} + Ba(OH)2{+2} = Ba(No3)2{-2} + H2O =>
2 HNo3{-2} + Ba(OH)2{+2} = Ba(No3)2{-2} + 2 H2O
C2H4O2 + LiOH = H2O + LiC2H3O2 =>
C2H4O2 + LiOH = H2O + LiC2H3O2
Li2O + H2O = LiOH =>
Li2O + H2O = 2 LiOH
Fe + H2SO4 = Fe2(SO4)3 + H2 =>
2 Fe + 3 H2SO4 = Fe2(SO4)3 + 3 H2
Fe + HNO3 = Fe(NO3)3 + N5O3 + H2O =>
19 Fe + 72 HNO3 = 19 Fe(NO3)3 + 3 N5O3 + 36 H2O
F2 + K = F{-} + K{+} =>
F2 + 2 K = 2 F{-} + 2 K{+}
Na3PO4 + CaCl = Ca3(PO4)2 + Na2Cl =>
2 Na3PO4 + 3 CaCl = Ca3(PO4)2 + 3 Na2Cl
Mg3Al2Si3O12 + Mg2Al4Si5O18 = Al2SiO5 + Mg2Si2O6 =>
2 Mg3Al2Si3O12 + 2 Mg2Al4Si5O18 = 6 Al2SiO5 + 5 Mg2Si2O6
C12H22O11 + NaOH = C12H21O11 + NaOH2 =>
C12H22O11 + NaOH = C12H21O11 + NaOH2
CCl4(g) + O2(g) = COCl2(g) + Cl2(g) =>
2 CCl4(g) + O2(g) = 2 COCl2(g) + 2 Cl2(g)
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