| Équations équilibrées la veille | Équations équilibrées le lendemain |
2 HBr + Hg(OH)2 = HgBr2 + 2 H2O
HNO3 + H2S = NO + S + H2O =>
2 HNO3 + 3 H2S = 2 NO + 3 S + 4 H2O
LiNO3 + NaOH = Li2O + NaNO3 + H2O =>
2 LiNO3 + 2 NaOH = Li2O + 2 NaNO3 + H2O
NaHSO3 + Ba(OH)2 = BaSO3 + NaOH + H2O =>
NaHSO3 + Ba(OH)2 = BaSO3 + NaOH + H2O
KF + HCl = FH + KCl =>
KF + HCl = FH + KCl
LiOH + H3BO3 = Li2B4O7 + H2O =>
2 LiOH + 4 H3BO3 = Li2B4O7 + 7 H2O
IO3{-} + SO32{-} = I{-} + SO42{-} =>
10 IO3{-} + 3 SO32{-} = 10 I{-} + 3 SO42{-}
Pb(OH)2 + HCl + H2O = [Pb(OH)4]Cl2 + H2 =>
Pb(OH)2 + 2 HCl + 2 H2O = [Pb(OH)4]Cl2 + 2 H2
R2O3 + HCl = RCl3 + H2O =>
R2O3 + 6 HCl = 2 RCl3 + 3 H2O
C3H6(OH)2 + Na = C3H6(ONa)2 + H2 =>
C3H6(OH)2 + 2 Na = C3H6(ONa)2 + H2
CHO = CO + H2O + C =>
2 CHO = CO + H2O + C
Cl2 + Na2SO3 + H2O = Na2SO4 + HCl =>
Cl2 + Na2SO3 + H2O = Na2SO4 + 2 HCl
Ba(C2H3O2)2 + Rb2SO4 = BaSO4 + RbC2H3O2 =>
Ba(C2H3O2)2 + Rb2SO4 = BaSO4 + 2 RbC2H3O2
FeNH4(SO4)2*12H2O + NH4OH = Fe(OH)3 + (NH4) + SO4 + H2O =>
FeNH4(SO4)2*12H2O + 3 NH4OH = Fe(OH)3 + 4(NH4) + 2 SO4 + 12 H2O
CH4(g) + Cl2(h) = CCl4(g) + HCl(g) =>
CH4(g) + 4 Cl2(h) = CCl4(g) + 4 HCl(g)
Ca + NaOH = Na2CaO2 + H2 =>
Ca + 2 NaOH = Na2CaO2 + H2
KMnO4 + H3PO4 + C2H6 = CO + Mn3(PO4) + K3PO4 + H2O =>
15 KMnO4 + 10 H3PO4 + 9 C2H6 = 18 CO + 5 Mn3(PO4) + 5 K3PO4 + 42 H2O
Na(g) + H2O(g) = H2(g) + NaOH =>
2 Na(g) + 2 H2O(g) = H2(g) + 2 NaOH
Ni2S3 + HNO3 = H2S + Ni(NO3)3 =>
Ni2S3 + 6 HNO3 = 3 H2S + 2 Ni(NO3)3
Co(OH)3 + Bi(ClO4)5 = Co(ClO4)3 + Bi(OH)5 =>
5 Co(OH)3 + 3 Bi(ClO4)5 = 5 Co(ClO4)3 + 3 Bi(OH)5
BH45{-} + H2O + H{+} = H3BO3 + H2 =>
2 BH45{-} + 6 H2O + 2 H{+} = 2 H3BO3 + 49 H2
SnSO4 = SnSO3 + O2 =>
2 SnSO4 = 2 SnSO3 + O2
PtCl4(NH3)4 + AgNO3 = PtCl2(NO3)2(NH3)4 + AgCl =>
PtCl4(NH3)4 + 2 AgNO3 = PtCl2(NO3)2(NH3)4 + 2 AgCl
AlCl3 + KOH = K[Al(OH)4] + KCl =>
AlCl3 + 4 KOH = K[Al(OH)4] + 3 KCl
AgF + NaBr = AgBr + NaF =>
AgF + NaBr = AgBr + NaF
K2 + O = KO2 =>
K2 + 4 O = 2 KO2
Mn(NO3)3 + NH4OH = MnOH + NH4 + NO3 =>
Mn(NO3)3 + NH4OH = MnOH + NH4 + 3 NO3
Cl(g) + F(g) = ClF3 =>
Cl(g) + 3 F(g) = ClF3
Mg + NaHCO3 + HCl = Mg(HCO3)2 + NaHCl =>
Mg + 2 NaHCO3 + 2 HCl = Mg(HCO3)2 + 2 NaHCl
ClO3{-} + H2O + e = Cl{-} + OH{-} =>
ClO3{-} + 3 H2O + 6e = Cl{-} + 6 OH{-}
Ag + NaOCl = AgCl + NaO =>
Ag + NaOCl = AgCl + NaO
Na + Cl = NaCl =>
Na + Cl = NaCl
KNO2 + HNO3 = KNO3 + NO2 + H2O =>
KNO2 + 2 HNO3 = KNO3 + 2 NO2 + H2O
KCrOH4 + Br2 + KOH = K2CrO4 + KBr + H2O =>
2 KCrOH4 + 9 Br2 + 20 KOH = 2 K2CrO4 + 18 KBr + 14 H2O
ZnS + HCl = ZnCl2 + H2S = =>
ZnS + 2 HCl = ZnCl2 + H2S
HNO3 + Fe2O3 = Fe(NO3)3 + H2O =>
6 HNO3 + Fe2O3 = 2 Fe(NO3)3 + 3 H2O
La100(N100O300)3*6H200O100 + Ca100(N100O300)2*4H200O100 + (C100H300C100O100O100)2Ni100*4H200O100 + Fe100(N100O300)3*9H200O100 = La50Ca50Ni30Fe70O300 + N100O100 + O200 + H200O100 + C300H600O100 =>
10 La100(N100O300)3*6H200O100 + 10 Ca100(N100O300)2*4H200O100 + 6(C100H300C100O100O100)2Ni100*4H200O100 + 14 Fe100(N100O300)3*9H200O100 = 20 La50Ca50Ni30Fe70O300 + 92 N100O100 + 73 O200 + 244 H200O100 + 8 C300H600O100
Ca(HS)2 + HNO3 = H2SO4 + CaSO4 + NO2 + H2O =>
Ca(HS)2 + 16 HNO3 = H2SO4 + CaSO4 + 16 NO2 + 8 H2O
KF + H2SO4 = HF + K2SO4 =>
2 KF + H2SO4 = 2 HF + K2SO4
Fe + O2 = Fe2O3 =>
4 Fe + 3 O2 = 2 Fe2O3
K{2}CrO{4} + NaOH = KOH + Na{2}CrO{4} =>
K{2}CrO{4} + NaOH = KOH + Na{2}CrO{4}
C2H6 + O2 = CO2 + H2O =>
2 C2H6 + 7 O2 = 4 CO2 + 6 H2O
C6H9NO4 + O2 = CO2 + H2O + NH3 =>
2 C6H9NO4 + 11 O2 = 12 CO2 + 6 H2O + 2 NH3
Na2Cr2O7 + Na2C2O4 + H2SO4 = Na2SO4 + Cr2(SO4)3 + CO2 + H2O =>
Na2Cr2O7 + 3 Na2C2O4 + 7 H2SO4 = 4 Na2SO4 + Cr2(SO4)3 + 6 CO2 + 7 H2O
LiOH + Fe(ClO)3 = LiClO + Fe(OH)3 =>
3 LiOH + Fe(ClO)3 = 3 LiClO + Fe(OH)3
CH3(COOH)2 + O2 = H2O + CO2 =>
4 CH3(COOH)2 + 9 O2 = 10 H2O + 12 CO2
AgOH = Ag + O + H2O =>
2 AgOH = 2 Ag + O + H2O
Si + P2O3 = SiO2 + P =>
3 Si + 2 P2O3 = 3 SiO2 + 4 P
Cd(NO3)2 + Na3PO4 = Cd3(PO4)2 + NaNO3 =>
3 Cd(NO3)2 + 2 Na3PO4 = Cd3(PO4)2 + 6 NaNO3
H2O2 + NH4OH = H2O + NO2 =>
7 H2O2 + 2 NH4OH = 12 H2O + 2 NO2
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