| Équations équilibrées la veille | Équations équilibrées le lendemain |
2 CaCO3 + 2 Ni = Ni2(CO3)2 + Ca2
H2S(g) + H2O2(i) = S(s) + H2O(i) =>
H2S(g) + H2O2(i) = S(s) + 2 H2O(i)
K2Cr2O7 + H2SO4 + KI2 = Cr2(SO4)3 + K2SO4 + H2O + I2 =>
K2Cr2O7 + 7 H2SO4 + 6 KI2 = Cr2(SO4)3 + 4 K2SO4 + 7 H2O + 6 I2
Na2B4O7 + CuCl2 = CuB4O7 + NaCl =>
Na2B4O7 + CuCl2 = CuB4O7 + 2 NaCl
Cl4N2 + CH4 = Cl4C + N2 + H2 =>
Cl4N2 + CH4 = Cl4C + N2 + 2 H2
Fe2 = Fe10 =>
5 Fe2 = Fe10
K2CrO4 + Pb(NO3)4 = Pb(CrO4) + K(NO3)2 =>
K2CrO4 + Pb(NO3)4 = Pb(CrO4) + 2 K(NO3)2
KMnO4 + KOH + KI = K2MnO4 + IO3 + H2O =>
7 KMnO4 + 6 KOH + KI = 7 K2MnO4 + IO3 + 3 H2O
C6Br6 + O2 = CO2 + Br2O =>
2 C6Br6 + 15 O2 = 12 CO2 + 6 Br2O
MnO2 + HU = U2 + MnU2 + H2O =>
MnO2 + 4 HU = U2 + MnU2 + 2 H2O
(NH4)2CO3 + H2SO4 + FeSO4*7H2O = (NH4)2SO4*FeSO4*6H2O + CO2 + H2O =>
(NH4)2CO3 + H2SO4 + FeSO4*7H2O = (NH4)2SO4*FeSO4*6H2O + CO2 + 2 H2O
NH4OH + HN3 = NH4N3 + H2O =>
NH4OH + HN3 = NH4N3 + H2O
B2H6 + HN3 = B3N3H6 + H2 =>
3 B2H6 + 2 HN3 = 2 B3N3H6 + 4 H2
NaCl + H2SO4 = NaClO3 + SO2 + H2O =>
NaCl + 3 H2SO4 = NaClO3 + 3 SO2 + 3 H2O
NaOH + Cl2 + S = Na2SO4 + H2O + NaCl =>
8 NaOH + 3 Cl2 + S = Na2SO4 + 4 H2O + 6 NaCl
Zn + Pb2(NO3)4 = Zn(NO3)2 + Pb4 =>
4 Zn + 2 Pb2(NO3)4 = 4 Zn(NO3)2 + Pb4
CH3CH2COOH + CH3OH = (CH3)2CH2CO(OH)2 =>
CH3CH2COOH + CH3OH = (CH3)2CH2CO(OH)2
NiO + FeS = FeO + Ni3S2 + SO2 =>
9 NiO + 7 FeS = 7 FeO + 3 Ni3S2 + SO2
BaCl2 + K2O = BaO + KCl =>
BaCl2 + K2O = BaO + 2 KCl
S + KOH = K2S + H2O + O2 =>
2 S + 4 KOH = 2 K2S + 2 H2O + O2
Pb(CH3COO)2 + H2O = Pb(OH)CH3COO + CH3COOH =>
Pb(CH3COO)2 + H2O = Pb(OH)CH3COO + CH3COOH
Ca(H2PO4)2*H2O + Ca5(PO4)3(OH) + H2O = CaHPO4*2H2O =>
2 Ca(H2PO4)2*H2O + Ca5(PO4)3(OH) + 11 H2O = 7 CaHPO4*2H2O
Fe(NO3)2 + KSCN = Fe(SCN)2 + K + NO3 =>
Fe(NO3)2 + 2 KSCN = Fe(SCN)2 + 2 K + 2 NO3
Cu(H2O) + NaOH = Cu(OH)2 + Na + H2O =>
Cu(H2O) + 2 NaOH = Cu(OH)2 + 2 Na + H2O
ClO3Na = NaCl + O2 =>
2 ClO3Na = 2 NaCl + 3 O2
K2Cr2O7 + NH4OH + H2SO4 = N2 + Cr2(SO4)3 + K2SO4 + H2O =>
K2Cr2O7 + 2 NH4OH + 4 H2SO4 = N2 + Cr2(SO4)3 + K2SO4 + 9 H2O
Cu2S2 + O2 = SO3 + CuO2 =>
Cu2S2 + 5 O2 = 2 SO3 + 2 CuO2
TiOSO4 + H2O2 + KOH = Ti(OH)2(OOH)2 + K2SO4 + H2O =>
TiOSO4 + 2 H2O2 + 2 KOH = Ti(OH)2(OOH)2 + K2SO4 + H2O
NH4OH + H3PO4 = (NH4)3PO4 + H2O =>
3 NH4OH + H3PO4 = (NH4)3PO4 + 3 H2O
Al + Sn3(PO4)3 = Sn + AlPO4 =>
3 Al + Sn3(PO4)3 = 3 Sn + 3 AlPO4
NaHCO3 + HC2H2O2 = CO2 + H2O + Na*CH2COO =>
NaHCO3 + HC2H2O2 = CO2 + H2O + Na*CH2COO
KMn2O7 + CuCl + HCl = MnCl3 + CuCl2 + KCl + H2O =>
KMn2O7 + 7 CuCl + 14 HCl = 2 MnCl3 + 7 CuCl2 + KCl + 7 H2O
LiBr + H2SO4 = LiHSO4 + HBr =>
LiBr + H2SO4 = LiHSO4 + HBr
(NH4)2CO3 + NaOH = Na2CO3 + NH4OH =>
(NH4)2CO3 + 2 NaOH = Na2CO3 + 2 NH4OH
NH(OH)4 + HBr = H2O + NHBr4 =>
NH(OH)4 + 4 HBr = 4 H2O + NHBr4
Al(OH)3 + HCl = AlCl3 + H2O =>
Al(OH)3 + 3 HCl = AlCl3 + 3 H2O
CaCN2 + Na2SO4 = CaO + COS + Na2O + N2 + CO2 =>
4 CaCN2 + 3 Na2SO4 = 4 CaO + 3 COS + 3 Na2O + 4 N2 + CO2
KClO4 + C12H22O11 = KCl + H2O + CO =>
3 KClO4 + C12H22O11 = 3 KCl + 11 H2O + 12 CO
HClO2(aq) + HBr(aq) = HCl(aq) + Br2(g) + H2O(l) =>
HClO2(aq) + 4 HBr(aq) = HCl(aq) + 2 Br2(g) + 2 H2O(l)
NH4F + HBr = NH4Br + HF =>
NH4F + HBr = NH4Br + HF
NaOH + NiBr2 = NiOH + NaBr2 =>
NaOH + NiBr2 = NiOH + NaBr2
FeS2 + FeCl3 + H2O = FeCl2 + HCl + H2SO4 =>
FeS2 + 14 FeCl3 + 8 H2O = 15 FeCl2 + 12 HCl + 2 H2SO4
AgNO3 + CuSO4 = Ag2SO4 + Cu(NO3)2 =>
2 AgNO3 + CuSO4 = Ag2SO4 + Cu(NO3)2
MnO4{-} + S{2-} + H{+}{+} = Mn{2+} + H2O + S =>
2 MnO4{-} + 5 S{2-} + 16 H{+}{+} = 2 Mn{2+} + 8 H2O + 5 S
H2 = HH =>
H2 = HH
Au2O7 + Cl2O7 = Au2Cl7 + O2 =>
4 Au2O7 + 14 Cl2O7 = 4 Au2Cl7 + 63 O2
H3C6H5O7 + NaHCO3 = H2O(l) + CO2 + Na2C6H6O7 =>
H3C6H5O7 + 2 NaHCO3 = 2 H2O(l) + 2 CO2 + Na2C6H6O7
Cl2 + Ca3P2 + H2O = CaCl2 + H3PO4 + HCl =>
8 Cl2 + Ca3P2 + 8 H2O = 3 CaCl2 + 2 H3PO4 + 10 HCl
CH4 + Cl2 = CCl + HCl =>
2 CH4 + 5 Cl2 = 2 CCl + 8 HCl
MgSO4 + Pb(NO3)2 = Mg(NO3)2 + Pb2(SO4)2 =>
2 MgSO4 + 2 Pb(NO3)2 = 2 Mg(NO3)2 + Pb2(SO4)2
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Équations équilibrées sur12/21/24
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