| Équations équilibrées la veille | Équations équilibrées le lendemain |
4 Rb(s) + Br2 = 2 Rb2Br
NH4VO3 + HCl + Zn = VOCl + ZnCl + H2O + NH3 =>
NH4VO3 + 3 HCl + 2 Zn = VOCl + 2 ZnCl + 2 H2O + NH3
K2[Zn(OH)4] = K2ZnO2 + H2O =>
K2[Zn(OH)4] = K2ZnO2 + 2 H2O
NH4VO3 + O2 = V2O5 + H2O + N2 =>
4 NH4VO3 + 3 O2 = 2 V2O5 + 8 H2O + 2 N2
Cr(s) + Ni2SO4(aq) = Cr(SO4) + Ni(s) =>
Cr(s) + Ni2SO4(aq) = Cr(SO4) + 2 Ni(s)
N2CO3 + HCl = HCO3 + N2Cl =>
N2CO3 + HCl = HCO3 + N2Cl
Ca(OH)2 + H2Co3 = Ca(HCo3)2 + H2O =>
Ca(OH)2 + 2 H2Co3 = Ca(HCo3)2 + 2 H2O
K2S2O3 + I3 = K2S4O6 + KI =>
6 K2S2O3 + 2 I3 = 3 K2S4O6 + 6 KI
Pb(NO3)2 + CaCO3 = Pb(CO3)2 + Ca(NO3) =>
Pb(NO3)2 + 2 CaCO3 = Pb(CO3)2 + 2 Ca(NO3)
CaO + (NH4)NO3 = Ca(NO3)2 + (NH4)2O =>
CaO + 2(NH4)NO3 = Ca(NO3)2 + (NH4)2O
Ca3(PO4)2 = Ca + (PO4)3 =>
3 Ca3(PO4)2 = 9 Ca + 2(PO4)3
HCl + Cu = CuCl2 + H2 =>
2 HCl + Cu = CuCl2 + H2
Cr2O7{2-} + Hg + H2SO4 + H{+} = Hg2SO4 + Cr3{+} + H2O =>
3 Cr2O7{2-} + 34 Hg + 17 H2SO4 + 8 H{+} = 17 Hg2SO4 + 2 Cr3{+} + 21 H2O
Fe22 + O = FeO =>
Fe22 + 22 O = 22 FeO
H2SO4 + K2Cr2O7 + KI = K2SO4 + Cr2(SO4)3 + I + H2O =>
7 H2SO4 + K2Cr2O7 + 6 KI = 4 K2SO4 + Cr2(SO4)3 + 6 I + 7 H2O
SnCl2 + Fe = FeCl3 + Sn =>
3 SnCl2 + 2 Fe = 2 FeCl3 + 3 Sn
N2H4 + KBrO3 = N2 + KBr + H2O =>
3 N2H4 + 2 KBrO3 = 3 N2 + 2 KBr + 6 H2O
CO2 + H2O = C6H12O6 + O2 =>
6 CO2 + 6 H2O = C6H12O6 + 6 O2
CuO + HCl = CuCl2 + H2O =>
CuO + 2 HCl = CuCl2 + H2O
SO3 + H2O = H2SO4 =>
SO3 + H2O = H2SO4
Ca + P = Ca3P2 =>
3 Ca + 2 P = Ca3P2
Na2CO3 + MnO2 + KNO3 = Na2MnO4 + KNO2 + CO2 =>
Na2CO3 + MnO2 + KNO3 = Na2MnO4 + KNO2 + CO2
MnSO4NH42S = NH42SO4MnS =>
MnSO4NH42S = NH42SO4MnS
Au(NO3)3 + H2O = Au + O2 + HNO3 =>
4 Au(NO3)3 + 6 H2O = 4 Au + 3 O2 + 12 HNO3
NaH2PO4 + NH3 = NaNH4HPO4 =>
NaH2PO4 + NH3 = NaNH4HPO4
CH3CH(CH3)CH2COONa + NaOH = CH3CH(CH3)CH3 + Na2CO3 =>
CH3CH(CH3)CH2COONa + NaOH = CH3CH(CH3)CH3 + Na2CO3
Fe + AgCH3CO2 = Ag + Fe(CH3CO2)2 =>
Fe + 2 AgCH3CO2 = 2 Ag + Fe(CH3CO2)2
K2Cr2O7 + K2C2O4 = CO2 + Cr2O3 + K2CO3 =>
K2Cr2O7 + 3 K2C2O4 = 2 CO2 + Cr2O3 + 4 K2CO3
K2Cr2O7 + Cu2O + H2SO4 = H2O + K2SO4 + Cr2(SO4)3 + CuSO4 =>
K2Cr2O7 + 3 Cu2O + 10 H2SO4 = 10 H2O + K2SO4 + Cr2(SO4)3 + 6 CuSO4
Pt + HCl = PtCl4 + H2 =>
Pt + 4 HCl = PtCl4 + 2 H2
FeCl2 + K2CO3 = FeCO3 + KCl =>
FeCl2 + K2CO3 = FeCO3 + 2 KCl
K2Cr2O7 + Pb(CH3COOO)2 = KCH3COOO + PbCr2O7 =>
K2Cr2O7 + Pb(CH3COOO)2 = 2 KCH3COOO + PbCr2O7
Iron(III)Chloride(aq) + CesiumPhosphate(aq) = CesiumChloride(aq) + Iron(III)Phosphate(s) =>
Iron(III)Chloride(aq) + CesiumPhosphate(aq) = CesiumChloride(aq) + Iron(III)Phosphate(s)
(NH4)3PO4 + H2O = NH4OH + P2O5 =>
2(NH4)3PO4 + 3 H2O = 6 NH4OH + P2O5
Al + Na2(CO3) = Al2(CO3)3 + Na =>
2 Al + 3 Na2(CO3) = Al2(CO3)3 + 6 Na
AlI3 + HgF2 = AlF2 + HgI3 =>
AlI3 + HgF2 = AlF2 + HgI3
Ca2Si(s) + Cl2(g) = CaCl2(g) + SiCl(g) =>
2 Ca2Si(s) + 5 Cl2(g) = 4 CaCl2(g) + 2 SiCl(g)
H3PO4 + Au = H + AuPO4 =>
H3PO4 + Au = 3 H + AuPO4
Ba2{+} + OH{-}H202 + ClO2 = Ba(ClO2)2 + H2O + O2 =>
4 Ba2{+} + 4 OH{-}H202 + 16 ClO2 = 8 Ba(ClO2)2 + 2 H2O + O2
HClO3(aq) + NaOH(aq) = NaClO3(aq) + H2O(l) =>
HClO3(aq) + NaOH(aq) = NaClO3(aq) + H2O(l)
C4H8O2 + H2O = C4H7O2{-} + H3O{+} =>
C4H8O2 + H2O = C4H7O2{-} + H3O{+}
Zn + HCl = ZnCl2 + H2 =>
Zn + 2 HCl = ZnCl2 + H2
Al(HCO3)3(s) + HCl(aq) = AlCl3(aq) + H2O(l) + CO2(g) =>
Al(HCO3)3(s) + 3 HCl(aq) = AlCl3(aq) + 3 H2O(l) + 3 CO2(g)
MnCl2 + NaHCO3 = Mn(CO3) + NaCl + CO2 + H2O =>
MnCl2 + 2 NaHCO3 = Mn(CO3) + 2 NaCl + CO2 + H2O
C6H10O4 + C6H16N2 = C6H10 + H2O + NH =>
C6H10O4 + 2 C6H16N2 = 3 C6H10 + 4 H2O + 4 NH
NaNO3 + CH3COOH + KI = NaCH3COO + KNO3 + HI =>
NaNO3 + CH3COOH + KI = NaCH3COO + KNO3 + HI
Cl2 + H2O = HCl + O2 =>
2 Cl2 + 2 H2O = 4 HCl + O2
CO2 + H2O + N2 = C3H6N6O6 + O2 =>
6 CO2 + 6 H2O + 6 N2 = 2 C3H6N6O6 + 3 O2
FeBr2 + Ca = CaBr2 + Fe =>
FeBr2 + Ca = CaBr2 + Fe
CH3C(CH3CH3OH) + HCl = CH3C(CH3CH3Cl) + H2O =>
CH3C(CH3CH3OH) + HCl = CH3C(CH3CH3Cl) + H2O
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