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2 SeO3 = 2 Se + 3 O2
S + BaO = BaS + O =>
S + BaO = BaS + O
Cu(NO3)2 + H2O = NO2 + Cu(OH)2 + O2 =>
2 Cu(NO3)2 + 2 H2O = 4 NO2 + 2 Cu(OH)2 + O2
Fe3(CO)12 + P(C6H5)3 = Fe(CO)3(P(C6H5)3)2 + CO =>
Fe3(CO)12 + 6 P(C6H5)3 = 3 Fe(CO)3(P(C6H5)3)2 + 3 CO
K2(CO3) + Ni(NO3)2 = K(NO3) + Ni(CO3) =>
K2(CO3) + Ni(NO3)2 = 2 K(NO3) + Ni(CO3)
Hg{2+} + Cu = Hg + Cu{+} =>
Hg{2+} + 2 Cu = Hg + 2 Cu{+}
KC2H3O2 = K + C2 + H3 + O2 =>
KC2H3O2 = K + C2 + H3 + O2
KHSO4 + H2SO4 + MnSO4 = SO2 + KMnO4 + H2O =>
2 KHSO4 + H2SO4 + 2 MnSO4 = 5 SO2 + 2 KMnO4 + 2 H2O
C57H98O6 + KOH = C3O3H8 + C18H31O2K =>
C57H98O6 + 3 KOH = C3O3H8 + 3 C18H31O2K
CuI2 = CuI + I2 =>
2 CuI2 = 2 CuI + I2
Se + P = SeP =>
Se + P = SeP
C2H3Cl + N2O = H2O + CO2 + HCl + N2 =>
C2H3Cl + 5 N2O = H2O + 2 CO2 + HCl + 5 N2
Al2(SO4)3 + Zn = Al + Zn(SO4)3 =>
Al2(SO4)3 + Zn = 2 Al + Zn(SO4)3
NH4 + O2 = NO33 + H2O =>
2 NH4 + 35 O2 = 2 NO33 + 4 H2O
AlCl3 + K2Cr2O7 + H2SO4 = Cr2(SO4)3 + K + H2O + Cl2 + Al2(SO4)3 =>
8 AlCl3 + 3 K2Cr2O7 + 21 H2SO4 = 3 Cr2(SO4)3 + 6 K + 21 H2O + 12 Cl2 + 4 Al2(SO4)3
Zn + As2O2 + H2SO4 = AsH3 + ZnSO4 + H2O =>
5 Zn + As2O2 + 5 H2SO4 = 2 AsH3 + 5 ZnSO4 + 2 H2O
PO4 + CuSO4 = PO4CuSO4 =>
PO4 + CuSO4 = PO4CuSO4
As(OH) + HCl = AsCl + H2O =>
As(OH) + HCl = AsCl + H2O
Fe2(O)3 + Mg = MgO + Fe =>
Fe2(O)3 + 3 Mg = 3 MgO + 2 Fe
HClO2 + Sr(OH)2 = H3O2 + SrClO2 =>
HClO2 + Sr(OH)2 = H3O2 + SrClO2
KY = K + Y2 =>
2 KY = 2 K + Y2
KOH + NH4Cl = NOH + KH4Cl =>
KOH + NH4Cl = NOH + KH4Cl
NaC2H3O2 + H2O + CO2 = HC2H3O2 + NaHCO3 =>
NaC2H3O2 + H2O + CO2 = HC2H3O2 + NaHCO3
C2H3OCI + O2 = CO2 + H2O + HCI =>
C2H3OCI + 2 O2 = 2 CO2 + H2O + HCI
PB(NO3)2 + HCl = PBCl2 + HNO3 =>
PB(NO3)2 + 2 HCl = PBCl2 + 2 HNO3
HClO3 + KOH = KClO3 + H2O =>
HClO3 + KOH = KClO3 + H2O
HgS(s) = Hg(s) + S(s) =>
HgS(s) = Hg(s) + S(s)
MgCO3 + H2SO4 = H2CO3 + MgSO4 =>
MgCO3 + H2SO4 = H2CO3 + MgSO4
NaNO3 + H2SO4 + KI = K2SO4 + NaNO2 + I2 + H2O =>
NaNO3 + H2SO4 + 2 KI = K2SO4 + NaNO2 + I2 + H2O
P4N5 + N2 = P3N9 =>
6 P4N5 + 21 N2 = 8 P3N9
Mg(OH)2 + H3PO2 = Mg + H3PO4 + H2O =>
2 Mg(OH)2 + H3PO2 = 2 Mg + H3PO4 + 2 H2O
H2S + CuO = CuS + H2O =>
H2S + CuO = CuS + H2O
Fe(OH)2 + O2 + H2O = Fe(OH)3 =>
4 Fe(OH)2 + O2 + 2 H2O = 4 Fe(OH)3
SO2 + KMnO4 + H = KMnO2 + H2SO4 =>
SO2 + KMnO4 + 2 H = KMnO2 + H2SO4
Ba + H2O = BaH + BaO =>
3 Ba + H2O = 2 BaH + BaO
P(OCH3)2CH3O + SOCl2 = PCl2CH3O + SO(OCH3)2 =>
P(OCH3)2CH3O + SOCl2 = PCl2CH3O + SO(OCH3)2
K2CrO4 + NaCl + AgNO3 = AgCrO4 + NaNO3 + K2Cl =>
K2CrO4 + NaCl + AgNO3 = AgCrO4 + NaNO3 + K2Cl
C7H6O2 + Na2CO3 = CO2 + NaC7H5O2 + H2O =>
2 C7H6O2 + Na2CO3 = CO2 + 2 NaC7H5O2 + H2O
SiO2 + MgCO3 = MgSiO3 + CO2 =>
SiO2 + MgCO3 = MgSiO3 + CO2
NH4OH(ac) + H2SO4(ac) = (NH4)2SO4(ac) + H2O =>
2 NH4OH(ac) + H2SO4(ac) = (NH4)2SO4(ac) + 2 H2O
Fe2(SO4)3 + H2SO4 = Fe(HSO4)3 =>
Fe2(SO4)3 + 3 H2SO4 = 2 Fe(HSO4)3
CaO + HNO2 = CaHNO3 =>
CaO + HNO2 = CaHNO3
(NH4)3PO4 + Ba(C2H3O2) = Ba3PO4 + NH4C2H3O2 =>
(NH4)3PO4 + 3 Ba(C2H3O2) = Ba3PO4 + 3 NH4C2H3O2
Mg + N2 = MgN =>
2 Mg + N2 = 2 MgN
Br2 + HJ = HBr + J2 =>
Br2 + 2 HJ = 2 HBr + J2
Ca(OH)2 + HNO3 = H2O + Ca(NO3)2 =>
Ca(OH)2 + 2 HNO3 = 2 H2O + Ca(NO3)2
HgS(s) = Hg(s) + S(s) =>
HgS(s) = Hg(s) + S(s)
Sn + AuCl3 = SnCl2 + Au =>
3 Sn + 2 AuCl3 = 3 SnCl2 + 2 Au
B2H6 = BH3 =>
B2H6 = 2 BH3
K2[HgI4] + NaOH = Na2[HgI4] + KOH =>
K2[HgI4] + 2 NaOH = Na2[HgI4] + 2 KOH
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