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2 Cu(NO3)2 + 2 H2O = O2 + 2 Cu + 4 HNO3
La + Ni = La75Ni25 =>
75 La + 25 Ni = La75Ni25
CaI2 + K2CO3 = CaCO3 + KI =>
CaI2 + K2CO3 = CaCO3 + 2 KI
K2SO3H2S = H2SO3K2S =>
K2SO3H2S = H2SO3K2S
K2[Zn(OH)4] + H2S = ZnS + KHS + H2O =>
K2[Zn(OH)4] + 3 H2S = ZnS + 2 KHS + 4 H2O
Na2S2O3 + HCl + H2O = H2SO4 + H2S + NaCl =>
Na2S2O3 + 2 HCl + H2O = H2SO4 + H2S + 2 NaCl
NiO2 + Mn(OH)2 = Mn2O3 + Ni(OH)2 + H2O =>
NiO2 + 2 Mn(OH)2 = Mn2O3 + Ni(OH)2 + H2O
HClH2O = H2ClOH =>
HClH2O = H2ClOH
KCIO3 + S = KCI + SO2 =>
2 KCIO3 + 3 S = 2 KCI + 3 SO2
Ca(OH)2 + SO2 = CaSO3H2O =>
Ca(OH)2 + SO2 = CaSO3H2O
Fe(NO3)2 + Na2S = FeS(s) + NaNO3 =>
Fe(NO3)2 + Na2S = FeS(s) + 2 NaNO3
AlNO3 + KOH = AlOH + KNO3 =>
AlNO3 + KOH = AlOH + KNO3
FeCl2 + H2OCl2 = FeCl3 + H2O =>
2 FeCl2 + H2OCl2 = 2 FeCl3 + H2O
NaCl(ag) + H2O(l) = Cl2(g) + H2(g) + NaOH(aq) =>
2 NaCl(ag) + 2 H2O(l) = Cl2(g) + H2(g) + 2 NaOH(aq)
C6H4CH3NH3Cl + NaOH = C6H4CH3NH2 + NaCl + H2O =>
C6H4CH3NH3Cl + NaOH = C6H4CH3NH2 + NaCl + H2O
K2[Zn(OH)4] + H2S = Zn(OH)2 + K2S + H2O =>
K2[Zn(OH)4] + H2S = Zn(OH)2 + K2S + 2 H2O
RCOONa + MgCl2 = (RCOO)2Mg + NaCl =>
2 RCOONa + MgCl2 = (RCOO)2Mg + 2 NaCl
CsCl + Na2SO4 = NaCl + Cs2SO4 =>
2 CsCl + Na2SO4 = 2 NaCl + Cs2SO4
S4 + Br2 = SBr3 =>
S4 + 6 Br2 = 4 SBr3
MgSO4 + CaF2 = MgF2 + CaSO4 =>
MgSO4 + CaF2 = MgF2 + CaSO4
K2[Zn(OH)4] + H2S = ZnS + K2S + H2O =>
K2[Zn(OH)4] + 2 H2S = ZnS + K2S + 4 H2O
AlCl3(aq) + Ba(OH)2(aq) = Al(OH)3 + BaCl2(aq) =>
2 AlCl3(aq) + 3 Ba(OH)2(aq) = 2 Al(OH)3 + 3 BaCl2(aq)
Cr2O3 + Na2C03 + KNO3 = Na2CrO4 + CO2 + KNO2 =>
Cr2O3 + 2 Na2C03 + 17 KNO3 = 2 Na2CrO4 + 6 CO2 + 17 KNO2
HNO3 + Mo(OH)6 = Mo(NO3)6 + H2O =>
6 HNO3 + Mo(OH)6 = Mo(NO3)6 + 6 H2O
HAsO3{2-} + S2O8{2-} + H2O = H2AsO4{-} + SO4{2-} + H{+} =>
HAsO3{2-} + S2O8{2-} + H2O = H2AsO4{-} + 2 SO4{2-} + H{+}
HO2 + S = H2SO4 =>
2 HO2 + S = H2SO4
Ba(NO3)2 + NaC2H3O2 = Ba(C2H3O2)2 + NaNO3 =>
Ba(NO3)2 + 2 NaC2H3O2 = Ba(C2H3O2)2 + 2 NaNO3
BaSiO3 = BaO + SiO2 =>
BaSiO3 = BaO + SiO2
Na3PO4 + MnCl2 = Mn3(PO4)2 + sodiumchloride =>
2 Na3PO4 + 3 MnCl2 = Mn3(PO4)2 + 6 NaCl
Mg2 + Fe(NO3)2 = Mg(NO3)2 + Fe =>
Mg2 + 2 Fe(NO3)2 = 2 Mg(NO3)2 + 2 Fe
C2H4Cl2 + KOH = C2H2 + H2O + KCl =>
C2H4Cl2 + 2 KOH = C2H2 + 2 H2O + 2 KCl
Zn + Pb3O4 = ZnO + PbO =>
Zn + Pb3O4 = ZnO + 3 PbO
KHSO3 + NH3 = KNH4SO3 =>
KHSO3 + NH3 = KNH4SO3
C2H2 + NaH = Na2C2 + H2 =>
C2H2 + 2 NaH = Na2C2 + 2 H2
MgCuSO4 = MgSO4 + Cu =>
MgCuSO4 = MgSO4 + Cu
CH4 + O2 = CO2 + H2O =>
CH4 + 2 O2 = CO2 + 2 H2O
N2O5 + Sr(OH)2 = HNO3 + SrO =>
N2O5 + Sr(OH)2 = 2 HNO3 + SrO
Na + O2 = Na2O =>
4 Na + O2 = 2 Na2O
NH2CH2COOHHBr = BrCH2COOHNH3 =>
NH2CH2COOHHBr = BrCH2COOHNH3
V2(CO3)3 = V2O3 + CO2 =>
V2(CO3)3 = V2O3 + 3 CO2
Ce(SO4)2 + Na2S2O3 = Ce2(SO4)3 + Na2SO4 + S =>
2 Ce(SO4)2 + 4 Na2S2O3 = Ce2(SO4)3 + 4 Na2SO4 + 5 S
SO2 + O2 = SO3 =>
2 SO2 + O2 = 2 SO3
KMnO4 + (NH4)2SO4 + H2SO4 = K2SO4 + MnSO4 + HNO3 + H2O =>
16 KMnO4 + 5(NH4)2SO4 + 19 H2SO4 = 8 K2SO4 + 16 MnSO4 + 10 HNO3 + 34 H2O
Fe + SCN = FeSCN =>
Fe + SCN = FeSCN
Al + O2 = Al2O3 =>
4 Al + 3 O2 = 2 Al2O3
Cu(s) + HNO3(aq) = Cu(NO3)2(aq) + NO2(g) + H2O(t) =>
Cu(s) + 4 HNO3(aq) = Cu(NO3)2(aq) + 2 NO2(g) + 2 H2O(t)
S + O2 = S2O =>
4 S + O2 = 2 S2O
Pb(SO3) + HCl = SO2 + PbCl2 + H2O =>
Pb(SO3) + 2 HCl = SO2 + PbCl2 + H2O
MgO + HBr = Mg(Br)2 + H2O =>
MgO + 2 HBr = Mg(Br)2 + H2O
CuSO4 + NaOH = Cu(OH)2 + Na2SO4 =>
CuSO4 + 2 NaOH = Cu(OH)2 + Na2SO4
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