| Équations équilibrées la veille | Équations équilibrées le lendemain |
2 VOCl3 + 6 NaOH = V2O5 + 6 NaCl + 3 H2O
NH4OH + K2CrO4 = (NH4)2CrO4 + KOH =>
2 NH4OH + K2CrO4 = (NH4)2CrO4 + 2 KOH
K2Cr2O7 + H2SO4 = K2SO4 + Cr2(SO4)3 + SO4 + H2O =>
K2Cr2O7 + 7 H2SO4 = K2SO4 + Cr2(SO4)3 + 3 SO4 + 7 H2O
VOSO4 + C2H6O + C5H8O2 + Na2CO3 = VO(C5H7O)2 + Na2SO4 + C2H4O =>
VOSO4 + 9 C2H6O + 11 C5H8O2 + Na2CO3 = VO(C5H7O)2 + Na2SO4 + 32 C2H4O
Na(OH) + K2SO4 = Na2SO4 + KOH =>
2 Na(OH) + K2SO4 = Na2SO4 + 2 KOH
Br2Sr + CaCrO4 = Br2Ca + SrCrO4 =>
Br2Sr + CaCrO4 = Br2Ca + SrCrO4
CuC2O4 + Al(OH)3 = Cu(OH)2 + Al2(C2O4)3 =>
3 CuC2O4 + 2 Al(OH)3 = 3 Cu(OH)2 + Al2(C2O4)3
K3PO4 + MgCl2 = (K3)2(Cl2)3 + Mg3(PO4)2 =>
2 K3PO4 + 3 MgCl2 = (K3)2(Cl2)3 + Mg3(PO4)2
AgCl + I2 + H2O = AgI + HCl + HIO3 =>
5 AgCl + 3 I2 + 3 H2O = 5 AgI + 5 HCl + HIO3
ZnS + HCl = ZnCl2H2S =>
ZnS + 2 HCl = ZnCl2H2S
BrCl + NaOH = NaCl + NaBr + NaBrO3 + H2O =>
3 BrCl + 6 NaOH = 3 NaCl + 2 NaBr + NaBrO3 + 3 H2O
Ni + NaCl2 = NiCl + Na =>
2 Ni + NaCl2 = 2 NiCl + Na
PbNO3 + C12H22O11 = Pb2O3 + N2 + H2O + CO =>
8 PbNO3 + C12H22O11 = 4 Pb2O3 + 4 N2 + 11 H2O + 12 CO
HBr + CuBr = HCu + Br2 =>
HBr + CuBr = HCu + Br2
Cu(SO4)2(aq) + Zn(s) = Cu(s) + Zn(SO4)2(aq) =>
Cu(SO4)2(aq) + Zn(s) = Cu(s) + Zn(SO4)2(aq)
BaCl2 + Na2SO4 = BaSO4 + NaCl =>
BaCl2 + Na2SO4 = BaSO4 + 2 NaCl
H2(g)F2(g) = HF(g) =>
H2(g)F2(g) = 2 HF(g)
FeCl2 + K2S = FeS + KCl =>
FeCl2 + K2S = FeS + 2 KCl
Fe{2+} + MnO4{-} + H3O{+} = Mn{2+} + Fe{3+} + H2O =>
5 Fe{2+} + MnO4{-} + 8 H3O{+} = Mn{2+} + 5 Fe{3+} + 12 H2O
Al(s) + Fe2O3(aq) = Al2O3(aq) + Fe(s) =>
2 Al(s) + Fe2O3(aq) = Al2O3(aq) + 2 Fe(s)
Al(OH)3 + H2SO4 = Al2(SO4)3 + H2O =>
2 Al(OH)3 + 3 H2SO4 = Al2(SO4)3 + 6 H2O
Cr2O3 + KOH + H2O = K3[Cr(OH)6] =>
Cr2O3 + 6 KOH + 3 H2O = 2 K3[Cr(OH)6]
Br2 + KOH = KBrO3 + KBr + H2O =>
3 Br2 + 6 KOH = KBrO3 + 5 KBr + 3 H2O
Cu + Al(NO3)3 = Cu(NO3)2 + Al =>
3 Cu + 2 Al(NO3)3 = 3 Cu(NO3)2 + 2 Al
C2H6 + O2 = CO2 + H2O =>
2 C2H6 + 7 O2 = 4 CO2 + 6 H2O
CH3COOH + KHCO3 = HCOOK + CO2 + H2O =>
CH3COOH + 4 KHCO3 = 4 HCOOK + 2 CO2 + 2 H2O
Pb(OH)2 + CuNO3 = Pb(NO3)2 + CuOH =>
Pb(OH)2 + 2 CuNO3 = Pb(NO3)2 + 2 CuOH
Ca + HCI = CaCI + H2 =>
2 Ca + 2 HCI = 2 CaCI + H2
CH4N2O + CH3OH + H3PO4 + H2SO4 = C5H12NO3PS2 + H2O + CO2 =>
3 CH4N2O + 40 CH3OH + 6 H3PO4 + 12 H2SO4 = 6 C5H12NO3PS2 + 71 H2O + 13 CO2
O2 + Cr(OH)2 + H2O = Cr(OH)3 =>
O2 + 4 Cr(OH)2 + 2 H2O = 4 Cr(OH)3
NaBH4(s) + I2(s) = B2H6(g) + H2(g) + NaI(s)(s) =>
2 NaBH4(s) + I2(s) = B2H6(g) + H2(g) + 2 NaI(s)(s)
Ca + As = CaAs =>
Ca + As = CaAs
CuCl2 + NH2(CH2)2NH2 = Cu(NH2(CH2)2NH2) + Cl =>
CuCl2 + NH2(CH2)2NH2 = Cu(NH2(CH2)2NH2) + 2 Cl
Mg + Li4C = Li + MgC2 =>
Mg + 2 Li4C = 8 Li + MgC2
H2C2O4 + O2 = HCO3 =>
H2C2O4 + O2 = 2 HCO3
MnO2(s) + H2C2O4(aq) = CO2(g) + MnO(s) + H2O(l) =>
MnO2(s) + H2C2O4(aq) = 2 CO2(g) + MnO(s) + H2O(l)
C8H5O4K + KOH = H2O + C8H4O4K2 =>
C8H5O4K + KOH = H2O + C8H4O4K2
KMnO4 + H2SO3 = K2SO4 + MnSO4 + H2O + H2SO4 =>
2 KMnO4 + 5 H2SO3 = K2SO4 + 2 MnSO4 + 3 H2O + 2 H2SO4
K4Fe(CN)6 + KMnO4 + H2SO4 = KHSO4 + Fe2(SO4)3 + MnSO4 + HNO3 + CO2 + H2O =>
10 K4Fe(CN)6 + 122 KMnO4 + 299 H2SO4 = 162 KHSO4 + 5 Fe2(SO4)3 + 122 MnSO4 + 60 HNO3 + 60 CO2 + 188 H2O
Cl2 + O3 + H2O = HClO2 =>
Cl2 + O3 + H2O = 2 HClO2
Hg2Cl2 + NH3 = Hg + HgNH2Cl + NH4{+} + Cl{-} =>
Hg2Cl2 + 2 NH3 = Hg + HgNH2Cl + NH4{+} + Cl{-}
Na2Cr2O7 + H2O + H2S = S + Cr(OH)3 + NaOH =>
Na2Cr2O7 + H2O + 3 H2S = 3 S + 2 Cr(OH)3 + 2 NaOH
SCN{-} + MnO4{-} + OH{-} = CN{-} + SO4{2-} + MnO3{2-} + H2O =>
SCN{-} + 2 MnO4{-} + 4 OH{-} = CN{-} + SO4{2-} + 2 MnO3{2-} + 2 H2O
NH4NO3 + O2 = NO + H2O =>
2 NH4NO3 + O2 = 4 NO + 4 H2O
Fe(HO)3 + SO3 = Fe2(SO4)3 + H2O =>
2 Fe(HO)3 + 3 SO3 = Fe2(SO4)3 + 3 H2O
C7H6O3(S) + C4H6O3(l) = C9H8O4(S) + H2O =>
2 C7H6O3(S) + C4H6O3(l) = 2 C9H8O4(S) + H2O
FeSCN + NH3 = HFeSCN + NH2 =>
FeSCN + NH3 = HFeSCN + NH2
Cr2O3 + H3PO4 = CrPO4*H2O + H2O =>
Cr2O3 + 2 H3PO4 = 2 CrPO4*H2O + H2O
CH4(g) + H2O = CO + H2 =>
CH4(g) + H2O = CO + 3 H2
Mg(NO3)2 + H2 = H(NO3) + Mg =>
Mg(NO3)2 + H2 = 2 H(NO3) + Mg
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