| Équations équilibrées la veille | Équations équilibrées le lendemain |
2 CrO4{-2} + 3 SO2 + 4 H{+} = Cr2(SO4)3 + 2 H2O
NaNO3 + Cr2O3 + Na2CO3 = Na2CrO4 + NO + CO2 =>
2 NaNO3 + Cr2O3 + Na2CO3 = 2 Na2CrO4 + 2 NO + CO2
N2O + CO = N2 + CO2 =>
N2O + CO = N2 + CO2
K2Cr2O7 + HBr + H2SO4 = K2SO4 + Br2 + H2O + Cr2(SO4)3 =>
K2Cr2O7 + 6 HBr + 4 H2SO4 = K2SO4 + 3 Br2 + 7 H2O + Cr2(SO4)3
KMnO4(aq) + HCl(aq) + FeCl2(aq) = MnCl2(aq) + FeCl3(aq) + H2O(l) + KCl =>
KMnO4(aq) + 8 HCl(aq) + 5 FeCl2(aq) = MnCl2(aq) + 5 FeCl3(aq) + 4 H2O(l) + KCl
SOH + HSO4 = SSO4 + H2O =>
SOH + HSO4 = SSO4 + H2O
Na2SiO3 + HF(aq) = H2SiF6(aq) + NaF(aq) + H2O(l) =>
Na2SiO3 + 8 HF(aq) = H2SiF6(aq) + 2 NaF(aq) + 3 H2O(l)
HH4NO3 = H2O + O2 + N2 =>
4 HH4NO3 = 10 H2O + O2 + 2 N2
CH4N2O + C2H6O = C3H10O2 + N2 =>
CH4N2O + C2H6O = C3H10O2 + N2
HCN + CuSO4 = H2SO4 + Cu(CN)2 =>
2 HCN + CuSO4 = H2SO4 + Cu(CN)2
Pb4 + CrCl3 = PbCl2 + Cr3 =>
9 Pb4 + 24 CrCl3 = 36 PbCl2 + 8 Cr3
C6H5OH + Br2 = C6H5OBr + HBr =>
C6H5OH + Br2 = C6H5OBr + HBr
Cr2(SO4)3 + H2S = CrSO4 + S + H2SO4 =>
Cr2(SO4)3 + H2S = 2 CrSO4 + S + H2SO4
Na3PO4 + FeCl3 = Fe(PO4) + ClNa =>
Na3PO4 + FeCl3 = Fe(PO4) + 3 ClNa
KCN + CuSO4 + S04 + H2O = Cu2(CN)2 + H2SO4 + KHSO4 =>
24 KCN + 24 CuSO4 + S04 + 16 H2O = 12 Cu2(CN)2 + 4 H2SO4 + 24 KHSO4
KMnO4 + Cr2(SO4)3 + H2O = K2Cr2O7 + H2MnO3 + H2SO4 =>
2 KMnO4 + Cr2(SO4)3 + 5 H2O = K2Cr2O7 + 2 H2MnO3 + 3 H2SO4
FeCl3 + Ca3(PO4)2 = FePO4 + CaCl2 =>
2 FeCl3 + Ca3(PO4)2 = 2 FePO4 + 3 CaCl2
CO(NH2)2 + H2SO4 = CO2 + HSO3NH2 + NH4(HSO4) =>
CO(NH2)2 + 2 H2SO4 = CO2 + HSO3NH2 + NH4(HSO4)
I2 + HCl = HI + Cl =>
I2 + 2 HCl = 2 HI + 2 Cl
Li4Si + H2O = LiOH + SiH4 =>
Li4Si + 4 H2O = 4 LiOH + SiH4
HI + Zn(No3)2 = HNo3 + ZnI2 =>
2 HI + Zn(No3)2 = 2 HNo3 + ZnI2
BiONO3 = Bi2O3 + N2O5 =>
2 BiONO3 = Bi2O3 + N2O5
D + O2 = D3O =>
6 D + O2 = 2 D3O
Fe2(SO4)3(aq) + KOH = Fe2O3(s) + K2SO4(aq) + H2O =>
Fe2(SO4)3(aq) + 6 KOH = Fe2O3(s) + 3 K2SO4(aq) + 3 H2O
CaO + Fe2O3 = Ca2Fe2O5 =>
2 CaO + Fe2O3 = Ca2Fe2O5
CO + H2O + KO2 = KHCO3 + O =>
2 CO + H2O + 2 KO2 = 2 KHCO3 + O
BCl + HF = BF + HCl =>
BCl + HF = BF + HCl
S + CO + H2O = SO4{-2} + CH4 + H{+} =>
S + CO + 3 H2O = SO4{-2} + CH4 + 2 H{+}
PB(NO3)2 + NaCl = PBCl2 + NaNO3 =>
PB(NO3)2 + 2 NaCl = PBCl2 + 2 NaNO3
Cr2(SO4)3 + H2O + KMnO4 + K2SO4 = K2Cr2O7 + H2SO4 + MnSO4 =>
5 Cr2(SO4)3 + 11 H2O + 6 KMnO4 + 2 K2SO4 = 5 K2Cr2O7 + 11 H2SO4 + 6 MnSO4
CH4(g) + O2(g) = CO2(l) + H2O(g) =>
CH4(g) + 2 O2(g) = CO2(l) + 2 H2O(g)
Ca5F(PO4)3 + H2SO4 = H3PO4 + CaSO4 + CaF2 =>
2 Ca5F(PO4)3 + 9 H2SO4 = 6 H3PO4 + 9 CaSO4 + CaF2
Cu2O + FeS = Cu2S + FeO =>
Cu2O + FeS = Cu2S + FeO
HNO3 + Pt = HPt + NO3 =>
HNO3 + Pt = HPt + NO3
Mg + H2S + O2 = Mg2S + H2O =>
4 Mg + 2 H2S + O2 = 2 Mg2S + 2 H2O
C2H6O2(l) + O2(g) = CO2(l) + H2O(l) =>
2 C2H6O2(l) + 5 O2(g) = 4 CO2(l) + 6 H2O(l)
Na2S + HCI = H2S + NaCI =>
Na2S + 2 HCI = H2S + 2 NaCI
GaF3 + Cs = CsF + Ga =>
GaF3 + 3 Cs = 3 CsF + Ga
Bi + SCN = BiCN + S3 =>
3 Bi + 3 SCN = 3 BiCN + S3
(NH4)2SO4 + H2O = H2SO4 + NH4OH =>
(NH4)2SO4 + 2 H2O = H2SO4 + 2 NH4OH
C5H12O + C3H5ClO = C8H16O2 + HCl =>
C5H12O + C3H5ClO = C8H16O2 + HCl
AgNO3 + NiCl2 = AgCl + Ni(NO3)2 =>
2 AgNO3 + NiCl2 = 2 AgCl + Ni(NO3)2
CH2O + Cu(OH)2 = HCOOH + CuOH + H2 =>
2 CH2O + 2 Cu(OH)2 = 2 HCOOH + 2 CuOH + H2
NH4Br + KNO2 = KBr + N2 + H2O =>
NH4Br + KNO2 = KBr + N2 + 2 H2O
I{-} + SO4{2-} + H{+} = I2 + H2S + H2O =>
8 I{-} + SO4{2-} + 10 H{+} = 4 I2 + H2S + 4 H2O
Al + N = AlN =>
Al + N = AlN
C2H5OH(l) + O2(g) = CO2(g) + H2(l) =>
2 C2H5OH(l) + 3 O2(g) = 4 CO2(g) + 6 H2(l)
CH6H5CH3NO2 + KMnO4 + H2SO4 = CH3COOHNO2 + H2O + MnSO4 + K2SO4 =>
5 CH6H5CH3NO2 + 14 KMnO4 + 21 H2SO4 = 5 CH3COOHNO2 + 46 H2O + 14 MnSO4 + 7 K2SO4
CsMnO4 + FeSO4 + H2SO4 = Fe2(SO4)3 + Cs2SO4 + MnSO4 + H2O =>
2 CsMnO4 + 10 FeSO4 + 8 H2SO4 = 5 Fe2(SO4)3 + Cs2SO4 + 2 MnSO4 + 8 H2O
H2Te + KHCO3 = K2Te + H2O + CO2 =>
H2Te + 2 KHCO3 = K2Te + 2 H2O + 2 CO2
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