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Équations chimiques équilibrées sur07/14/25

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Cr(NO3)2 + NaOH = Cr(OH)2 + NaNO3 =>
Cr(NO3)2 + 2 NaOH = Cr(OH)2 + 2 NaNO3

K2C4H4O6 + O2 = K2CO3 + H2O + CO2 =>
2 K2C4H4O6 + 5 O2 = 2 K2CO3 + 4 H2O + 6 CO2

NaOH + Mg(NO2)2 = NaNO2 + Mg(OH)2 =>
2 NaOH + Mg(NO2)2 = 2 NaNO2 + Mg(OH)2

H{+} + BiO3{-} + Mn{2+} = MnO4{-} + Bi{3+} + H2O =>
14 H{+} + 5 BiO3{-} + 2 Mn{2+} = 2 MnO4{-} + 5 Bi{3+} + 7 H2O

NaHCO3(s) = H2O(aq) + CO2 + Na2CO3(aq) =>
2 NaHCO3(s) = H2O(aq) + CO2 + Na2CO3(aq)

Ba(NO3)2(aq) + CaCl2 = BaCl2(s) + Ca(NO3)2(aq) =>
Ba(NO3)2(aq) + CaCl2 = BaCl2(s) + Ca(NO3)2(aq)

Cu(OH)2 + KOH = K2(Cu(OH)4) =>
Cu(OH)2 + 2 KOH = K2(Cu(OH)4)

Al(OH)3(s) + NaOH(aq) = Na[Al(OH)4](aq) =>
Al(OH)3(s) + NaOH(aq) = Na[Al(OH)4](aq)

I + Br = IBr2 =>
I + 2 Br = IBr2

MnO4{-} + S{-} + H{+} = Mn2{+} + S + H2O =>
2 MnO4{-} + 13 S{-} + 16 H{+} = Mn2{+} + 13 S + 8 H2O

FeBr3 + Mg = MgBr2 + Fe3 =>
6 FeBr3 + 9 Mg = 9 MgBr2 + 2 Fe3

H3AsO3 + Co(OH)2 = (CoOH)3AsO3 + H2O =>
H3AsO3 + 3 Co(OH)2 = (CoOH)3AsO3 + 3 H2O

KNO2 + H2O + K2S2O5 = K3[ON(SO3)2]*H2O =>
KNO2 + H2O + K2S2O5 = K3[ON(SO3)2]*H2O

CH2O + Cu(OH)2 + NaOH = Na2CO3 + Cu2O + H2O =>
CH2O + 4 Cu(OH)2 + 2 NaOH = Na2CO3 + 2 Cu2O + 6 H2O

KMnO4(aq) + H2C2O4(aq) + H2SO4(aq) = MnSO4(aq) + CO2(g) + H2O(l) + K2SO4(aq) =>
2 KMnO4(aq) + 5 H2C2O4(aq) + 3 H2SO4(aq) = 2 MnSO4(aq) + 10 CO2(g) + 8 H2O(l) + K2SO4(aq)

Al(OH)4(aq) + H2SO4(aq) = Al(OH)3(s) + SO4(aq) + H2O(l) =>
2 Al(OH)4(aq) + H2SO4(aq) = 2 Al(OH)3(s) + SO4(aq) + 2 H2O(l)

C2H5NHCH3 + O2 = CO2 + N2 + H2O =>
4 C2H5NHCH3 + 21 O2 = 12 CO2 + 2 N2 + 18 H2O

HCO3{-} + OH{-} = CO3{2-} + H2O =>
HCO3{-} + OH{-} = CO3{2-} + H2O

NH4Cl2 + HNO3 = Cl2 + H2O + NH4NO3 =>
8 NH4Cl2 + 10 HNO3 = 8 Cl2 + 3 H2O + 9 NH4NO3

NaOH + H2Cl2 = NaCl + H2O =>
2 NaOH + H2Cl2 = 2 NaCl + 2 H2O

CH3CH2Br + OH = CH3CH2OH + Br =>
CH3CH2Br + OH = CH3CH2OH + Br

Mg + NiCl3 = Ni + MgCl2 =>
3 Mg + 2 NiCl3 = 2 Ni + 3 MgCl2

Al + Fe3O4 = Fe + Al2O3 =>
8 Al + 3 Fe3O4 = 9 Fe + 4 Al2O3

CH3CH2Br + OH = CH3CH2OH + Br =>
CH3CH2Br + OH = CH3CH2OH + Br

HCO3{-} + OH{-} = CO3{-2} + H2O =>
HCO3{-} + OH{-} = CO3{-2} + H2O

CH2CHCH3 + F2 = CHFCFCH3 + H2 =>
CH2CHCH3 + F2 = CHFCFCH3 + H2

CH3CH2Br + OH = CH3CH2OH + Br =>
CH3CH2Br + OH = CH3CH2OH + Br

H2SeO4 + Cs(OH)2 = Cs2(SeO4)2 + H2O =>
2 H2SeO4 + 2 Cs(OH)2 = Cs2(SeO4)2 + 4 H2O

CH3CH2Br + OH = CH3CH2OH + Br =>
CH3CH2Br + OH = CH3CH2OH + Br

CO3{2-} + H2O = HCO3{-} + OH{-} =>
CO3{2-} + H2O = HCO3{-} + OH{-}

CH3CH2Br + OH = CH3CH2OH + Br =>
CH3CH2Br + OH = CH3CH2OH + Br

C6H6 + H6 = CH6H12 =>
C6H6 + 17 H6 = 6 CH6H12

AgNO3 + Ca(OH)2 = AgOH + Ca(NO3)2 =>
2 AgNO3 + Ca(OH)2 = 2 AgOH + Ca(NO3)2

CH3CH2Br + OH = CH3CH2OH + Br =>
CH3CH2Br + OH = CH3CH2OH + Br

HNO3(aq) + NH3(aq) = NH4 + NO3 =>
HNO3(aq) + NH3(aq) = NH4 + NO3

CH3CH2Br + OH = CH3CH2OH + Br =>
CH3CH2Br + OH = CH3CH2OH + Br

CrCl3 + H2O2 + KOH = K2CrO4 + KCl + H2O =>
2 CrCl3 + 3 H2O2 + 10 KOH = 2 K2CrO4 + 6 KCl + 8 H2O

Fe(NO3)3 + KOH = Fe(OH)3 + KNO3 =>
Fe(NO3)3 + 3 KOH = Fe(OH)3 + 3 KNO3

CHCl3Cl2 = CCl4HCl =>
CHCl3Cl2 = CCl4HCl

Li + Ca3(PO4)2 = Li3(PO4) + Ca =>
6 Li + Ca3(PO4)2 = 2 Li3(PO4) + 3 Ca

Al(NO3)3 + HOH = HNO3 + Al(OH)3 =>
Al(NO3)3 + 3 HOH = 3 HNO3 + Al(OH)3

Cu(OH)2 + NH3OH = Cu(NH3)4 + OH =>
Cu(OH)2 + 4 NH3OH = Cu(NH3)4 + 6 OH

Mn(NO3)2 + LiOH = Mn(OH)2 + LiNO3 =>
Mn(NO3)2 + 2 LiOH = Mn(OH)2 + 2 LiNO3

MnO4 + Sn = SnO2 + MnO2 =>
MnO4 + Sn = SnO2 + MnO2

Zn(No3)2 + KOH = Zn(OH)2 + KNo3 =>
Zn(No3)2 + 2 KOH = Zn(OH)2 + 2 KNo3

Pb(NO3)2(aq) + Na3PO4 = Pb3(PO4)2 + NaNO3(aq) =>
3 Pb(NO3)2(aq) + 2 Na3PO4 = Pb3(PO4)2 + 6 NaNO3(aq)

HNO3 + Cu = Cu(NO3)2 + HN3 + H2O =>
19 HNO3 + 8 Cu = 8 Cu(NO3)2 + HN3 + 9 H2O

K + Na + H2O = KNa(OH)2 + H2 =>
K + Na + 2 H2O = KNa(OH)2 + H2

C6H5BrNH3KOH = C6H5NH2KBrH2O =>
C6H5BrNH3KOH = C6H5NH2KBrH2O

CH3CH2Br + OH = CH3CH2OH + Br =>
CH3CH2Br + OH = CH3CH2OH + Br

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Équilibrer l'équation de toute réaction chimique
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