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Hg2S2 = 2 Hg + 2 S
MgO + Ca(OH)2 = Mg(OH)2 + CaO =>
MgO + Ca(OH)2 = Mg(OH)2 + CaO
Co2(SiO3)3 + NaCl = Na2SiO3 + CoCl3 =>
Co2(SiO3)3 + 6 NaCl = 3 Na2SiO3 + 2 CoCl3
C6H12O + Na2Cr2O7 + H2SO4 = C6H10O + Cr2(SO4)3 + H2O + Na2SO4 =>
3 C6H12O + Na2Cr2O7 + 4 H2SO4 = 3 C6H10O + Cr2(SO4)3 + 7 H2O + Na2SO4
MnSO4 + K3[Fe(CN)6] = Mn3[Fe(CN)6]2 + K2SO4 =>
3 MnSO4 + 2 K3[Fe(CN)6] = Mn3[Fe(CN)6]2 + 3 K2SO4
NH3 + HCl = NH4Cl =>
NH3 + HCl = NH4Cl
HgO = Hg + O2 =>
2 HgO = 2 Hg + O2
Li2SO4 + Na2S = Li2S + Na2SO4 =>
Li2SO4 + Na2S = Li2S + Na2SO4
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
Mg3(PO4)2 + Al(ClO3)3 = Mg(ClO3)2 + AlPO4 =>
Mg3(PO4)2 + 2 Al(ClO3)3 = 3 Mg(ClO3)2 + 2 AlPO4
HF + As2O3 = AsF3 + H2O =>
6 HF + As2O3 = 2 AsF3 + 3 H2O
Al + HCl = AlCl3 + H2 =>
2 Al + 6 HCl = 2 AlCl3 + 3 H2
Cu(NO3)2 + PO4 = Cu3(PO4)2 + NO3 =>
3 Cu(NO3)2 + 2 PO4 = Cu3(PO4)2 + 6 NO3
HClKOH = KCl + H2O =>
HClKOH = KCl + H2O
H2CO3 + LiOH = Li2CO3 + H2O =>
H2CO3 + 2 LiOH = Li2CO3 + 2 H2O
CH3COONH4 + Ca(OH)2 = (CH3COO)2Ca + NH3 + H2O =>
2 CH3COONH4 + Ca(OH)2 = (CH3COO)2Ca + 2 NH3 + 2 H2O
Cu + C2H5NS = CuS + C2H5N =>
Cu + C2H5NS = CuS + C2H5N
Na + Fe(ClO3)3 = Fe + Na(ClO3) =>
3 Na + Fe(ClO3)3 = Fe + 3 Na(ClO3)
CaCl2 + NaNO3 = Ca(NO3)2 + NaCl =>
CaCl2 + 2 NaNO3 = Ca(NO3)2 + 2 NaCl
H2 + Cl2 = HCl =>
H2 + Cl2 = 2 HCl
CH3CH2NH3NO3 + HCl = CH3CH2NH3Cl + HNO3 =>
CH3CH2NH3NO3 + HCl = CH3CH2NH3Cl + HNO3
Cu + AgN2 = Cu2N2 + Ag =>
2 Cu + AgN2 = Cu2N2 + Ag
V2(SO4)3 + K2Cr2O7 + H2SO4 = (VO2)2SO4 + K2SO4 + Cr2(SO4)3 + H2O =>
3 V2(SO4)3 + 2 K2Cr2O7 + 2 H2SO4 = 3(VO2)2SO4 + 2 K2SO4 + 2 Cr2(SO4)3 + 2 H2O
CaCl2(aq) + Al(NO3)3(aq) = Ca(NO3)2 + AlCl3 =>
3 CaCl2(aq) + 2 Al(NO3)3(aq) = 3 Ca(NO3)2 + 2 AlCl3
Sn + I = SnI4 =>
Sn + 4 I = SnI4
Na2CO3 + H3PO4 = Na3PO4 + H2O + CO2 =>
3 Na2CO3 + 2 H3PO4 = 2 Na3PO4 + 3 H2O + 3 CO2
NaF + Br2 = NaBr2 + F2 =>
2 NaF + 2 Br2 = 2 NaBr2 + F2
C3H6O + NaHCO3 = C3H5O2Na + CO2 + H2O =>
7 C3H6O + 8 NaHCO3 = 8 C3H5O2Na + 5 CO2 + 5 H2O
FeCl2(aq) + NaOH(aq) = Fe(OH)2(s) + NaCl =>
FeCl2(aq) + 2 NaOH(aq) = Fe(OH)2(s) + 2 NaCl
Zn2 + H3PO4 = H2 + Zn3(PO4)2 =>
3 Zn2 + 4 H3PO4 = 6 H2 + 2 Zn3(PO4)2
ZnCl2 + (NH4)2S = NH4Cl + ZnS =>
ZnCl2 + (NH4)2S = 2 NH4Cl + ZnS
Cu(ClO4)2 + Zn = Zn(ClO4)2 + Cu =>
Cu(ClO4)2 + Zn = Zn(ClO4)2 + Cu
C2H5Br + CH3 = C3H8 + Br =>
C2H5Br + CH3 = C3H8 + Br
Zn + H2SO4 = ZnSO4 + H2 =>
Zn + H2SO4 = ZnSO4 + H2
CuSO4 + NaOH = Cu(OH)2 + Na2SO4 =>
CuSO4 + 2 NaOH = Cu(OH)2 + Na2SO4
H2O + NO2 = NH3 + O2 =>
6 H2O + 4 NO2 = 4 NH3 + 7 O2
NiO + Na2S2O3 = Ni3S2 + Na2SO4 + S =>
3 NiO + 3 Na2S2O3 = Ni3S2 + 3 Na2SO4 + S
C2H5OH + O2 = CO + H2O =>
C2H5OH + 2 O2 = 2 CO + 3 H2O
NH3 + HO2 = NO + H2O =>
3 NH3 + 5 HO2 = 3 NO + 7 H2O
ZrOCl2 + H2O = HCl + ZrO2 =>
ZrOCl2 + H2O = 2 HCl + ZrO2
Mg2 + CuCl = Cu + MgCl2 =>
Mg2 + 4 CuCl = 4 Cu + 2 MgCl2
K2[HgI4] + NaOH + NH4Cl = [OHg2NH2]I + KCl + NaI + KI + H2O =>
2 K2[HgI4] + 4 NaOH + NH4Cl = [OHg2NH2]I + KCl + 4 NaI + 3 KI + 3 H2O
H2 + O2 = H2O =>
2 H2 + O2 = 2 H2O
HgO = Hg + O2 =>
2 HgO = 2 Hg + O2
BaCl2 + K2Cr2O7 = K2Cl2 + BaCr2O7 =>
BaCl2 + K2Cr2O7 = K2Cl2 + BaCr2O7
CuO + C6H5Cl = CuCl + C6H5O =>
CuO + C6H5Cl = CuCl + C6H5O
Nb2O5 = Nb + O5 =>
Nb2O5 = 2 Nb + O5
H4Sb2O7 + Ba(OH)2 = Ba2(Sb2O7) + H2O =>
H4Sb2O7 + 2 Ba(OH)2 = Ba2(Sb2O7) + 4 H2O
FeCl2(aq) + KMnO4(aq) + HCl(aq) = FeCl3(aq) + MnCl2(aq) + H2O(l) + KCl(aq) =>
5 FeCl2(aq) + KMnO4(aq) + 8 HCl(aq) = 5 FeCl3(aq) + MnCl2(aq) + 4 H2O(l) + KCl(aq)
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