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2 CoS2 = 2 CoS + S2
Zn + Ha = ZnHa2 =>
Zn + 2 Ha = ZnHa2
CuSO4*5H2O + NaOH = CuO + Na2SO4 + H2O =>
CuSO4*5H2O + 2 NaOH = CuO + Na2SO4 + 6 H2O
H2S + O2 = SO2 + H2O =>
2 H2S + 3 O2 = 2 SO2 + 2 H2O
Li2O + SO2 + O2 = Li2SO4 =>
2 Li2O + 2 SO2 + O2 = 2 Li2SO4
Ca(NO3)2(heat) = Ca(NO2)2 + O2 =>
Ca(NO3)2(heat) = Ca(NO2)2 + O2
Fe(NO3)3 + KNCS = Fe(NCS)3 + KNO3 =>
Fe(NO3)3 + 3 KNCS = Fe(NCS)3 + 3 KNO3
Cl2O7 + OH = ClO4 + H2O =>
Cl2O7 + 2 OH = 2 ClO4 + H2O
Al(SO4)3 + CaOH = CaSO4 + Al(OH)3 =>
Al(SO4)3 + 3 CaOH = 3 CaSO4 + Al(OH)3
FeBr3 + H2O = Fe(OH)3 + HBr =>
FeBr3 + 3 H2O = Fe(OH)3 + 3 HBr
Pb(NO3)2(aq) + HCl(aq) = PbCl2(s) + HNO3(aq) =>
Pb(NO3)2(aq) + 2 HCl(aq) = PbCl2(s) + 2 HNO3(aq)
MgSO4 + NaOH = Mg(OH)2 + Na2SO4 =>
MgSO4 + 2 NaOH = Mg(OH)2 + Na2SO4
Fe(NO3)3(aq) + Ag(s) = Ag(s)NO3(aq) + Fe =>
Fe(NO3)3(aq) + 3 Ag(s) = 3 Ag(s)NO3(aq) + Fe
(Br) + (KI) = (KBr) + (I) =>
(Br) + (KI) = (KBr) + (I)
Ni(OH)2 + O2 = NiOOH + H2O =>
4 Ni(OH)2 + O2 = 4 NiOOH + 2 H2O
Zn + Cu(NO3)2 = Zn(NO3)2 + Cu =>
Zn + Cu(NO3)2 = Zn(NO3)2 + Cu
Ca(OH)2 + K2CO3 = KOH + CaCO3 =>
Ca(OH)2 + K2CO3 = 2 KOH + CaCO3
Zn + NH3*H2O = [Zn(NH3)2(H2O)2] =>
Zn + 2 NH3*H2O = [Zn(NH3)2(H2O)2]
(NH4)2SO4 + Ca(OH)2 = NH4OH(aq) + CaSO4 =>
(NH4)2SO4 + Ca(OH)2 = 2 NH4OH(aq) + CaSO4
P2O5 + H2SO4 = P2(SO4)5 + H2O =>
P2O5 + 5 H2SO4 = P2(SO4)5 + 5 H2O
Mg(OH)2(aq) + HBr(aq) = MgBr2(aq) + H2O =>
Mg(OH)2(aq) + 2 HBr(aq) = MgBr2(aq) + 2 H2O
SO3 + NaOH = NaHSO3 + O2 =>
2 SO3 + 2 NaOH = 2 NaHSO3 + O2
CuI + H2SO4 = I2 + Cu2SO3 + H2O =>
2 CuI + H2SO4 = I2 + Cu2SO3 + H2O
Li(OH) + FeCl2 = LiCl + Fe(OH)2 =>
2 Li(OH) + FeCl2 = 2 LiCl + Fe(OH)2
FeCl3 + NH4OH = Fe(OH)2 + (NH4)Cl + Cl =>
FeCl3 + 2 NH4OH = Fe(OH)2 + 2(NH4)Cl + Cl
Br + HI = HBr + I2 =>
2 Br + 2 HI = 2 HBr + I2
NaOH + Ca(OH)2 = Na(OH)2 + CaOH =>
NaOH + Ca(OH)2 = Na(OH)2 + CaOH
KI + HCl = KCl + H2 + I2 =>
2 KI + 2 HCl = 2 KCl + H2 + I2
Fe(OH)3 + HNO3 = Fe(NO3)3 + H2O =>
Fe(OH)3 + 3 HNO3 = Fe(NO3)3 + 3 H2O
KI + HCl = KCl + H2 + I2 =>
2 KI + 2 HCl = 2 KCl + H2 + I2
Al2(SO4)3 + Na2S + H2O = Al(OH)3 + Na2SO4 + H2S =>
Al2(SO4)3 + 3 Na2S + 6 H2O = 2 Al(OH)3 + 3 Na2SO4 + 3 H2S
CuSO4 + NaOH = Cu(OH)2 + (Na2)SO4 =>
CuSO4 + 2 NaOH = Cu(OH)2 + (Na2)SO4
Ba(OH)2 + HCl = BaCl2 + H2O =>
Ba(OH)2 + 2 HCl = BaCl2 + 2 H2O
KOH + FeO = KFeO2 + H2 =>
2 KOH + 2 FeO = 2 KFeO2 + H2
Al2O3 + NaOH = Na2Al2O4 + H2O =>
Al2O3 + 2 NaOH = Na2Al2O4 + H2O
C + Na = Na4C =>
C + 4 Na = Na4C
Ba(HCO3)2 + LiOH = Li2CO3 + BaCO3 + H2O =>
Ba(HCO3)2 + 2 LiOH = Li2CO3 + BaCO3 + 2 H2O
NaH + Cl = NaCl + H2 =>
2 NaH + 2 Cl = 2 NaCl + H2
C6HH6 + O2 = CO2 + H2O =>
4 C6HH6 + 31 O2 = 24 CO2 + 14 H2O
CuCl + NH3 + H2O = [Cu(NH3)4(H2O)2] + NH4Cl + OH =>
CuCl + 5 NH3 + 3 H2O = [Cu(NH3)4(H2O)2] + NH4Cl + OH
KClO3 + H2SO4 = HClO4 + Cl2 + H2O + K2SO4 =>
14 KClO3 + 7 H2SO4 = 10 HClO4 + 2 Cl2 + 2 H2O + 7 K2SO4
NiCl2(aq) + AgNO3(aq) = AgCl(s) + Ni(NO3)2(aq) =>
NiCl2(aq) + 2 AgNO3(aq) = 2 AgCl(s) + Ni(NO3)2(aq)
Ae2(SO4)3 + Ca(OH)2 = Ae(OH)3 + CaSO4 =>
Ae2(SO4)3 + 3 Ca(OH)2 = 2 Ae(OH)3 + 3 CaSO4
NaOH + FeCl = NaCl + Fe(OH) =>
NaOH + FeCl = NaCl + Fe(OH)
H2O + Cu + HCl = CuCl2*3Cu(OH)2 + H2 =>
6 H2O + 4 Cu + 2 HCl = CuCl2*3Cu(OH)2 + 4 H2
Fe + HC1 = FeC1 + H2 =>
2 Fe + 2 HC1 = 2 FeC1 + H2
Ti(SO4)2 + BaCl2 = BaSO4 + TiCl4 =>
Ti(SO4)2 + 2 BaCl2 = 2 BaSO4 + TiCl4
Sb2O3(s) + NaOH(l) = NaSbO2(ac) + H2O(l) =>
Sb2O3(s) + 2 NaOH(l) = 2 NaSbO2(ac) + H2O(l)
K2CrO4 + Ba = K + Ba2CrO4 =>
K2CrO4 + 2 Ba = 2 K + Ba2CrO4
(NO2)3CH2CC6H2(NO2)3 + O2 = CO2 + H2O + N2 =>
(NO2)3CH2CC6H2(NO2)3 + 3 O2 = 8 CO2 + 2 H2O + 3 N2
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