| Équations équilibrées la veille | Équations équilibrées le lendemain |
12 AgNO3 + 4 C6H5O7Na3 + 6 H2O = 12 Ag + 12 NaNO3 + 4 C6H5O7H3 + 3 O2
C3H5Br + Br2 = C3H3Br2 + H2 =>
2 C3H5Br + Br2 = 2 C3H3Br2 + 2 H2
NaClMgCl2 = NaCl2MgCl =>
NaClMgCl2 = NaCl2MgCl
CH3CH2MgBr + CO2 = CH3CH2COOMgBr =>
CH3CH2MgBr + CO2 = CH3CH2COOMgBr
Br2 + Ca(OH)2 = CaBr2 + CaBrO3 + H2O =>
5 Br2 + 6 Ca(OH)2 = 4 CaBr2 + 2 CaBrO3 + 6 H2O
Ca5P2 + SiO2 + C = Ca4Si2 + P4 + CO =>
4 Ca5P2 + 10 SiO2 + 20 C = 5 Ca4Si2 + 2 P4 + 20 CO
H2SO4 + Ca3(PO4)2CaF2 = Ca(H2PO4)2 + CaSO4 + HF =>
3 H2SO4 + Ca3(PO4)2CaF2 = Ca(H2PO4)2 + 3 CaSO4 + 2 HF
K2CO3 + Na = K + Na2CO3 =>
K2CO3 + 2 Na = 2 K + Na2CO3
HCN = H + C + N =>
HCN = H + C + N
Mg + H{3}PO{4} = Mg{3}PO{4}{2} + H{2} =>
Mg + 3 H{3}PO{4} = Mg{3}PO{4}{2} + 3 H{2}
Mn{2+} + H2PO4{-} = Mn3(PO4)2 + H{+} =>
3 Mn{2+} + 2 H2PO4{-} = Mn3(PO4)2 + 4 H{+}
Na + Cu2O = NaOCu2 =>
Na + Cu2O = NaOCu2
N = N4 =>
4 N = N4
C2H9NH2(g) + O2(g) = CO2(g) + H2O(g) + N2(g) =>
4 C2H9NH2(g) + 19 O2(g) = 8 CO2(g) + 22 H2O(g) + 2 N2(g)
Pb(OH)2 + CuCO3 = PbCO3 + Cu(OH)2 =>
Pb(OH)2 + CuCO3 = PbCO3 + Cu(OH)2
Ca + O2 = Ca3O2 =>
3 Ca + O2 = Ca3O2
CdO + TiO2 = CdTiO3 =>
CdO + TiO2 = CdTiO3
HCN(g) + O2(g) = N2(g) + CO2(g) + H2O(g) =>
4 HCN(g) + 5 O2(g) = 2 N2(g) + 4 CO2(g) + 2 H2O(g)
CaCO3 + H2S = CaS + H2O + CO2 =>
CaCO3 + H2S = CaS + H2O + CO2
CH4() + H2O(l) = CO(g) + H2(g) =>
CH4() + H2O(l) = CO(g) + 3 H2(g)
LiOH + P = POH + Li =>
LiOH + P = POH + Li
KOH(aq) + Cu(NO3)(aq) = KNO3(s) + Cu(OH)(aq) =>
KOH(aq) + Cu(NO3)(aq) = KNO3(s) + Cu(OH)(aq)
L2O3(s) + H2O(l) = L(OH)3(as) =>
L2O3(s) + 3 H2O(l) = 2 L(OH)3(as)
Pb(C2H3O2)2 + K2S = PbS + KCH3CO2 =>
Pb(C2H3O2)2 + K2S = PbS + 2 KCH3CO2
H3C6H6O6 + OH{-} = C6H6O6{3-} + H2O =>
H3C6H6O6 + 3 OH{-} = C6H6O6{3-} + 3 H2O
Mn3O4(ac) + H2(g) = MnO(ac) + H2O(g) =>
Mn3O4(ac) + H2(g) = 3 MnO(ac) + H2O(g)
C2H4(g) + O2(g) = CO2(g) + H2O(l) =>
C2H4(g) + 3 O2(g) = 2 CO2(g) + 2 H2O(l)
Cr(SO4)3 + KOH = Cr(OH)3 + KSO4 =>
Cr(SO4)3 + 3 KOH = Cr(OH)3 + 3 KSO4
CH3CH2CH2OH + KMnO4 + H2SO4 = K2SO4 + MnOH2 + CH3CH2COOH + H2O =>
7 CH3CH2CH2OH + 4 KMnO4 + 2 H2SO4 = 2 K2SO4 + 4 MnOH2 + 7 CH3CH2COOH + 5 H2O
HCIZn = ZnHCI =>
HCIZn = ZnHCI
K2 + CrCl2 = K2Cl2 + Cr =>
K2 + CrCl2 = K2Cl2 + Cr
HCl + Sl = SlCl4 + H2 =>
4 HCl + Sl = SlCl4 + 2 H2
Ca0 + HNO3 = Ca(NO3)2 + N2 + H2O =>
5 Ca0 + 12 HNO3 = 5 Ca(NO3)2 + N2 + 6 H2O
Al2O3 + Ca(OH)2 = Al2CaO4 + H2O =>
Al2O3 + Ca(OH)2 = Al2CaO4 + H2O
Cr2(SO4)3 + K3[Fe(CN)6] + KOH = K2CrO4 + K4[Fe(CN)6] + K2SO4 + H2O =>
Cr2(SO4)3 + 6 K3[Fe(CN)6] + 16 KOH = 2 K2CrO4 + 6 K4[Fe(CN)6] + 3 K2SO4 + 8 H2O
Na2O + NO2 = NaNO2 + NaNO3 =>
Na2O + 2 NO2 = NaNO2 + NaNO3
As4 + Cl2 + H2O = H3AsO4 + HCl =>
As4 + 10 Cl2 + 16 H2O = 4 H3AsO4 + 20 HCl
C2H6 + Pb3O4 = Pb + H2O + CO2 =>
4 C2H6 + 7 Pb3O4 = 21 Pb + 12 H2O + 8 CO2
C3H8O + K = C3H6OK + H2 =>
C3H8O + K = C3H6OK + H2
C2H4O + C4H8O = C8H14O2 + H2O =>
2 C2H4O + C4H8O = C8H14O2 + H2O
HCH3COOH + NaOH = NaCH3COOH + H2O =>
HCH3COOH + NaOH = NaCH3COOH + H2O
Na2S + Fe = NaFe + S =>
Na2S + 2 Fe = 2 NaFe + S
CH3CH2CH2CH2OH + CH3CH2CH2COOH = CH3CH2CH2CH2COOH + H2O =>
CH3CH2CH2CH2OH + 4 CH3CH2CH2COOH = 4 CH3CH2CH2CH2COOH + H2O
C2H8O2(l) + O2(g) = H2O(g) + CO2 =>
C2H8O2(l) + 3 O2(g) = 4 H2O(g) + 2 CO2
Pb[NO3]2 + Na2CO3 = NaNO3 + PbCO3 =>
Pb[NO3]2 + Na2CO3 = 2 NaNO3 + PbCO3
Sn(CO3)2 + Al2(SO3)3 = Sn(SO3)2 + Al2(CO3)3 =>
3 Sn(CO3)2 + 2 Al2(SO3)3 = 3 Sn(SO3)2 + 2 Al2(CO3)3
Cl + N = Cl3N5 =>
3 Cl + 5 N = Cl3N5
H2SO4 + Ca = H2O + SO2 + CaSO4 =>
2 H2SO4 + Ca = 2 H2O + SO2 + CaSO4
KNO3 + H2SiO3 = K2SiO3 + HNO3 =>
2 KNO3 + H2SiO3 = K2SiO3 + 2 HNO3
Cu2SFeS2 + HNO3 = CuSO4 + Cu(NO3)2 + Fe2(SO4)3 + N2O + H2O =>
8 Cu2SFeS2 + 58 HNO3 = 12 CuSO4 + 4 Cu(NO3)2 + 4 Fe2(SO4)3 + 25 N2O + 29 H2O
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