| Équations équilibrées la veille | Équations équilibrées le lendemain |
7 Na + SF5 = Na2S + 5 NaF
BiONO3 + Na2[Sn(OH)4] + NaOH + H2O = Bi + Na2[Sn(OH)6] + NaNO3 =>
2 BiONO3 + 3 Na2[Sn(OH)4] + 2 NaOH + 2 H2O = 2 Bi + 3 Na2[Sn(OH)6] + 2 NaNO3
H2SO4 + NH4OH = H2O + (NH4)2SO4 =>
H2SO4 + 2 NH4OH = 2 H2O + (NH4)2SO4
[Cu(NH3)4](NO3)2 + NaCN = Na2[Cu(CN)4] + NH3 + NaNO3 =>
[Cu(NH3)4](NO3)2 + 4 NaCN = Na2[Cu(CN)4] + 4 NH3 + 2 NaNO3
ClO = O3 + Cl =>
3 ClO = O3 + 3 Cl
CaF2 + Li = LiF + Ca =>
CaF2 + 2 Li = 2 LiF + Ca
C2H2(g) + O2(g) = HOH(g) + CO2(g) =>
2 C2H2(g) + 5 O2(g) = 2 HOH(g) + 4 CO2(g)
KCl + CaS + ZnS = KCa2ZnS3Cl =>
KCl + 2 CaS + ZnS = KCa2ZnS3Cl
KOH + H2C2O4 = K2C2O4 + H2O =>
2 KOH + H2C2O4 = K2C2O4 + 2 H2O
Fe + H2O = H4 + Fe3O4 =>
3 Fe + 4 H2O = 2 H4 + Fe3O4
Ca(OH)2 + HOOCCOOH = Ca(OOCCOOH)2 + H2O =>
Ca(OH)2 + 2 HOOCCOOH = Ca(OOCCOOH)2 + 2 H2O
(NH4)2(SO4)(aq) + Ba(NO3)2(aq) = (NH4)(NO3)(aq) + Ba(SO4)(s) =>
(NH4)2(SO4)(aq) + Ba(NO3)2(aq) = 2(NH4)(NO3)(aq) + Ba(SO4)(s)
NaCrO2 + NaOH + H2O2 = Na2CrO4 + H202 =>
202 NaCrO2 + 202 NaOH + 101 H2O2 = 202 Na2CrO4 + 2 H202
C2H4(g) + CI2(g) = CI2H4 + C =>
C2H4(g) + CI2(g) = CI2H4 + 2 C
NaO + H2O = NaOH + H2O3 =>
4 NaO + 3 H2O = 4 NaOH + H2O3
Li3(PO4) + Sn(C2H3O2)2 = Sn3(PO4)2 + LiC2H3O2 =>
2 Li3(PO4) + 3 Sn(C2H3O2)2 = Sn3(PO4)2 + 6 LiC2H3O2
Sr(OH)2 + HNO3 = Sr(NO3)2 + H2O =>
Sr(OH)2 + 2 HNO3 = Sr(NO3)2 + 2 H2O
FeCr2Cr4 + K2CO3 + O2 = K2CrO4 + Fe2O3 + CO2 =>
4 FeCr2Cr4 + 24 K2CO3 + 39 O2 = 24 K2CrO4 + 2 Fe2O3 + 24 CO2
NaOH + H3AlO3 = Na3AlO3 + H2O =>
3 NaOH + H3AlO3 = Na3AlO3 + 3 H2O
C3H8O + K2Cr2O7 + H{+} = Cr{3+} + CO2 + H2O + K{+} =>
C3H8O + 3 K2Cr2O7 + 24 H{+} = 6 Cr{3+} + 3 CO2 + 16 H2O + 6 K{+}
Ti + Mg(NO3)2 = Mg + Ti(NO3) =>
2 Ti + Mg(NO3)2 = Mg + 2 Ti(NO3)
H2Se + Li = H2 + LiSe =>
H2Se + Li = H2 + LiSe
CaC2O4(ac) + KMnO4(ac) + H2SO4(ac) = CaSO4(ac) + MnSO4(ac) + K2SO4(ac) + CO2(g) + H2O(g) =>
5 CaC2O4(ac) + 2 KMnO4(ac) + 8 H2SO4(ac) = 5 CaSO4(ac) + 2 MnSO4(ac) + K2SO4(ac) + 10 CO2(g) + 8 H2O(g)
Ca(OH)2 + Na2SO4 + HCl = CaSO4 + NaCl + H2O =>
Ca(OH)2 + Na2SO4 + 2 HCl = CaSO4 + 2 NaCl + 2 H2O
Mn + NaOH = Mn(OH)2(s) + Na =>
Mn + 2 NaOH = Mn(OH)2(s) + 2 Na
MgCO3 + HNO2 = Mg(NO2)2 + H2CO3 =>
MgCO3 + 2 HNO2 = Mg(NO2)2 + H2CO3
Cr2(SO4)3 + KOH = Cr(OH)3 + K2SO4 =>
Cr2(SO4)3 + 6 KOH = 2 Cr(OH)3 + 3 K2SO4
PbCl2 + HCIO3 = Pb(CIO3)2 + HCl =>
PbCl2 + 2 HCIO3 = Pb(CIO3)2 + 2 HCl
(CH3CO)2O + HCl = CH3COCl + CH3CO2H =>
(CH3CO)2O + HCl = CH3COCl + CH3CO2H
O2 + ZnI2 = I2 + ZnO =>
O2 + 2 ZnI2 = 2 I2 + 2 ZnO
K + N2 = K3N =>
6 K + N2 = 2 K3N
Rb2O2 + H2O = RbOH + O2 =>
2 Rb2O2 + 2 H2O = 4 RbOH + O2
Al(NO3)3 + NH4OH = Al(OH)3 + NH4 + NH4(NO3)3 =>
Al(NO3)3 + 3 NH4OH = Al(OH)3 + 2 NH4 + NH4(NO3)3
KHCO3 + H2SO4 = CO2 + H2O + K2SO4 =>
2 KHCO3 + H2SO4 = 2 CO2 + 2 H2O + K2SO4
K2CO3 + HBr = CO2 + H2O + KBr =>
K2CO3 + 2 HBr = CO2 + H2O + 2 KBr
HNO2 + Cl2 + H2O = HCl + HNO3 =>
HNO2 + Cl2 + H2O = 2 HCl + HNO3
NH3 + FeCl2 = HCl + N2 + Fe =>
2 NH3 + 3 FeCl2 = 6 HCl + N2 + 3 Fe
Na + Si + O2 = Na2SiO4 =>
2 Na + Si + 2 O2 = Na2SiO4
Na2S2O3(aq) + HCl(aq) = SO2(aq) + S(s) + H2O(l) + NaCl(aq) =>
Na2S2O3(aq) + 2 HCl(aq) = SO2(aq) + S(s) + H2O(l) + 2 NaCl(aq)
HNO3 + Na2CO3 = CO2 + H2O + Na2(NO3)2 =>
2 HNO3 + Na2CO3 = CO2 + H2O + Na2(NO3)2
Fe2O3 + CCl4 = FeCl3 + COCl2 =>
Fe2O3 + 3 CCl4 = 2 FeCl3 + 3 COCl2
Na2SiO3 + H2S = Na2S + H2SiO3 =>
Na2SiO3 + H2S = Na2S + H2SiO3
CuCl2 + Hg3AsO4 = HgCl + Cu3(AsO4)2 =>
3 CuCl2 + 2 Hg3AsO4 = 6 HgCl + Cu3(AsO4)2
SrO + Ba = BaO + Sr =>
SrO + Ba = BaO + Sr
H{+} + Cr2O7{-} + C2H5OH = Cr3{+} + CH3COOH + H2O =>
20 H{+} + 12 Cr2O7{-} + 37 C2H5OH = 8 Cr3{+} + 37 CH3COOH + 47 H2O
SrCO3 + HBr = SrBr2 + H2O + CO2 =>
SrCO3 + 2 HBr = SrBr2 + H2O + CO2
C6H5ONa + HCl = C6H4 + NaCl + H2O =>
C6H5ONa + HCl = C6H4 + NaCl + H2O
Fe2S3 + H2O = Fe(OH)3 + H2S =>
Fe2S3 + 6 H2O = 2 Fe(OH)3 + 3 H2S
KBiO3 + Mn(NO3)2 + HNO3 = Bi(NO3)3 + H2O + KMnO4 + KNO3 =>
5 KBiO3 + 2 Mn(NO3)2 + 14 HNO3 = 5 Bi(NO3)3 + 7 H2O + 2 KMnO4 + 3 KNO3
As2O5 + NaOH = H2O + Na3AsO4 =>
As2O5 + 6 NaOH = 3 H2O + 2 Na3AsO4
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