| Équations équilibrées la veille | Équations équilibrées le lendemain |
2 Na + Ca = CaNa2
HSCH2COONa + HNO3 = HSCH2COOH + NaNO3 =>
HSCH2COONa + HNO3 = HSCH2COOH + NaNO3
Na + H2O = NaOH + H2 =>
2 Na + 2 H2O = 2 NaOH + H2
Mg2Si + H2O = Mg(OH)2 + Si(OH)4 + H2 =>
Mg2Si + 8 H2O = 2 Mg(OH)2 + Si(OH)4 + 4 H2
NH4Cl + NaHCO3 = NH3 + H2O + NaCl + CO2 =>
NH4Cl + NaHCO3 = NH3 + H2O + NaCl + CO2
MgO + H2SiO3 = Mg(SiO3) + H2O =>
MgO + H2SiO3 = Mg(SiO3) + H2O
H2O2(l) = H2O(l)2H2O(l) + O2(g) =>
4 H2O2(l) = 2 H2O(l)2H2O(l) + O2(g)
NH4I + H2SO4 = H2O + H2S + I2 + NH4HSO4 =>
8 NH4I + 9 H2SO4 = 4 H2O + H2S + 4 I2 + 8 NH4HSO4
K[Al(OH)4] + H2S = Al(OH)3 + KHS + H2O =>
K[Al(OH)4] + H2S = Al(OH)3 + KHS + H2O
Si4Cl = Si + Cl =>
Si4Cl = 4 Si + Cl
CH3COOH + Cu(OH)2 = (CH3COO)2Cu + H2O =>
2 CH3COOH + Cu(OH)2 = (CH3COO)2Cu + 2 H2O
AlCl3 + Cr(OH)3 = Al(OH)3 + CrCl3 =>
AlCl3 + Cr(OH)3 = Al(OH)3 + CrCl3
Na2S + ZnSO4 = ZnS + Na2SO4 =>
Na2S + ZnSO4 = ZnS + Na2SO4
[CuSO4] + [Na2S] = CuS + Na2SO4 =>
[CuSO4] + [Na2S] = CuS + Na2SO4
Li2SO4 + HNO3 = LiNO3 + H2SO4 =>
Li2SO4 + 2 HNO3 = 2 LiNO3 + H2SO4
KBr + Ca(NO3)2 = CaBr + K(NO3)2 =>
KBr + Ca(NO3)2 = CaBr + K(NO3)2
NaHCO3 + CH3COOH = NaCH3COO + H2 + CO2 =>
2 NaHCO3 + 3 CH3COOH = 2 NaCH3COO + 4 H2 + 4 CO2
NaOH(aq) + CoCl2(aq) = CoOH(s) + NaCl2(aq) =>
NaOH(aq) + CoCl2(aq) = CoOH(s) + NaCl2(aq)
CuO(s) + NH7(g) = Cu(s) + N2(g) + H2O(l) =>
7 CuO(s) + 2 NH7(g) = 7 Cu(s) + N2(g) + 7 H2O(l)
Cn{-} + MnO4{-} + H{+} = CnO{-} + MnO2 + H2O =>
3 Cn{-} + 2 MnO4{-} + 2 H{+} = 3 CnO{-} + 2 MnO2 + H2O
NaH + CO2 + O2 = Na2CO3 + H2O =>
2 NaH + CO2 + O2 = Na2CO3 + H2O
AgNo3(aq)NaCl(aq) = NaCl(s)AgNo3(aq) =>
AgNo3(aq)NaCl(aq) = NaCl(s)AgNo3(aq)
KBr + Ca(NO3)2 = CaBr + K(NO3)2 =>
KBr + Ca(NO3)2 = CaBr + K(NO3)2
C6H6 + HNO3 = C6HN + H2O =>
C6H6 + HNO3 = C6HN + 3 H2O
K2O2 + KJ + H2SO4 = J2 + K2SO4 + H2O =>
K2O2 + 2 KJ + 2 H2SO4 = J2 + 2 K2SO4 + 2 H2O
CaCl2 + H2O = Ca(OH)2 + HCl =>
CaCl2 + 2 H2O = Ca(OH)2 + 2 HCl
NH4Cl + H2O = ClNH5 + OH =>
NH4Cl + H2O = ClNH5 + OH
NH3 + O2 = NO + H2O =>
4 NH3 + 5 O2 = 4 NO + 6 H2O
AgNO3(aq) + NaOH(aq) = Ag2O(s) + H2O(aq) + NaNO3 =>
2 AgNO3(aq) + 2 NaOH(aq) = Ag2O(s) + H2O(aq) + 2 NaNO3
Mg + NaH2PO4 = Mg3(PO4)2 + Na3PO4 + H2 =>
3 Mg + 3 NaH2PO4 = Mg3(PO4)2 + Na3PO4 + 3 H2
FeCl2 + FeCl3 = Fe2Cl5 =>
FeCl2 + FeCl3 = Fe2Cl5
H2S(g) + MnCl2 = Mn2S2(s) + HCl(l) =>
2 H2S(g) + 2 MnCl2 = Mn2S2(s) + 4 HCl(l)
Cl3 + H2S3 = HCl2 + S3 =>
4 Cl3 + 3 H2S3 = 6 HCl2 + 3 S3
Mg(NO3)2*6H2O + Fe(NO3)2*6H2O + H2NCH2COOH = MgFe2O4 + H2O + N2 + CO2 =>
9 Mg(NO3)2*6H2O + 18 Fe(NO3)2*6H2O + 28 H2NCH2COOH = 9 MgFe2O4 + 232 H2O + 41 N2 + 56 CO2
KNO3 + Al2(SO3)3 = K2(SO3) + Al(NO3)3 =>
6 KNO3 + Al2(SO3)3 = 3 K2(SO3) + 2 Al(NO3)3
MnO(OH)2 + H{+} + I{-} = Mn{2+} + I2 + H2O =>
MnO(OH)2 + 4 H{+} + 2 I{-} = Mn{2+} + I2 + 3 H2O
Pb + HNO2 = Pb(NO2)2 + H =>
Pb + 2 HNO2 = Pb(NO2)2 + 2 H
KOH + MgSO4 = K2SO4 + Mg(OH)2 =>
2 KOH + MgSO4 = K2SO4 + Mg(OH)2
Na2SO4 + KOH = Na2OH + KSO4 =>
Na2SO4 + KOH = Na2OH + KSO4
As2O5 + MgCl2 = AsCl5 + MgO =>
As2O5 + 5 MgCl2 = 2 AsCl5 + 5 MgO
C2H5OH + O2 = CO2 + H2O =>
C2H5OH + 3 O2 = 2 CO2 + 3 H2O
Al(OH)3 + Cl = AlCl3 + OH =>
Al(OH)3 + 3 Cl = AlCl3 + 3 OH
MgO + HNO3 + H2O = Mg(NO3)2*6H2O =>
MgO + 2 HNO3 + 5 H2O = Mg(NO3)2*6H2O
HPO4(aq) + CeOH(aq) = CePO4(aq) + H2O(l) =>
HPO4(aq) + CeOH(aq) = CePO4(aq) + H2O(l)
HNO3 + FeCl2 = HCl + Fe(NO3)3 + NO2 + H2O =>
4 HNO3 + FeCl2 = 2 HCl + Fe(NO3)3 + NO2 + H2O
Dy2O3 + MnCO3 + O2 = DyMn2O5 + CO2 =>
2 Dy2O3 + 8 MnCO3 + 3 O2 = 4 DyMn2O5 + 8 CO2
NaH2PO2 + H2SO4 = SO2 + H3PO4 + H2O + Na2SO4 =>
2 NaH2PO2 + 5 H2SO4 = 4 SO2 + 2 H3PO4 + 4 H2O + Na2SO4
Ca(ClO4)2 + KNO3 = KClO4 + Ca(NO3)2 =>
Ca(ClO4)2 + 2 KNO3 = 2 KClO4 + Ca(NO3)2
CH3CH2CH2Br + NH3 = CH3CH2CH2NH2 + NH4Br =>
CH3CH2CH2Br + 2 NH3 = CH3CH2CH2NH2 + NH4Br
CrCl3 + NaOH + NaClO = NaCl + H2O + Na2CrO4 =>
2 CrCl3 + 10 NaOH + 3 NaClO = 9 NaCl + 5 H2O + 2 Na2CrO4
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