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Équations chimiques équilibrées sur03/21/25

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C2H4 + O2 = CO2 + H2O =>
C2H4 + 3 O2 = 2 CO2 + 2 H2O

KBr(s) + O2(g) = KBrO3(s) =>
2 KBr(s) + 3 O2(g) = 2 KBrO3(s)

Fe + Hg(NO3)2 = Fe(NO3)3 + Hg =>
2 Fe + 3 Hg(NO3)2 = 2 Fe(NO3)3 + 3 Hg

LiOH(aq) + KCl(s) = LiCl(s) + KOH =>
LiOH(aq) + KCl(s) = LiCl(s) + KOH

IO3{-1)+H3O{+}+S2O3{2-} = S4O6{2-}+I{-}+H2O =>
IO3{-1)+6H3O{+}+6S2O3{2-} = 3 S4O6{2-}+I{-}+9H2O

Cl2 + KOH = KCl + KClO3 + H2O =>
3 Cl2 + 6 KOH = 5 KCl + KClO3 + 3 H2O

MgCl2 + AgNO3 = Mg(NO3)2 + AgCl =>
MgCl2 + 2 AgNO3 = Mg(NO3)2 + 2 AgCl

CH4 + O2 = CO2 + H2O =>
CH4 + 2 O2 = CO2 + 2 H2O

S + Ba(OH)2 = BaHS + BaSO4 + H2O =>
3 S + 3 Ba(OH)2 = 2 BaHS + BaSO4 + 2 H2O

NaOH + KHC8H5O4 = KNaC8H5O4 + H2O =>
NaOH + KHC8H5O4 = KNaC8H5O4 + H2O

AlBr3 + Cl2 = AlCl3 + Br2* =>
2 AlBr3 + 3 Cl2 = 2 AlCl3 + 3 Br2*

Ca + HCl = CaCl2 + H2 =>
Ca + 2 HCl = CaCl2 + H2

C6H5COOH + O2 = CO2 + H2O =>
2 C6H5COOH + 15 O2 = 14 CO2 + 6 H2O

CuSO4 + NaOH = Cu(OH)2 + Na2SO4 =>
CuSO4 + 2 NaOH = Cu(OH)2 + Na2SO4

HOCH2CH2CHCH3CH3 + C2H3OHO = CH3CO2CH2CH2CH3CH3 + H2O =>
18 HOCH2CH2CHCH3CH3 + 15 C2H3OHO = 20 CH3CO2CH2CH2CH3CH3 + 8 H2O

C7H8 + KMnO4 = C6H5COOH + MnO2 + KOH =>
C7H8 + 2 KMnO4 = C6H5COOH + 2 MnO2 + 2 KOH

K + B3O3 = K2O + B =>
6 K + B3O3 = 3 K2O + 3 B

CH2OHCH2OH + HNO3 = CH2ONO2CH2ONO2 + H2O =>
CH2OHCH2OH + 2 HNO3 = CH2ONO2CH2ONO2 + 2 H2O

FeSO4 + H2O2 = Fe2O3 + SO4 + H2O =>
2 FeSO4 + 3 H2O2 = Fe2O3 + 2 SO4 + 3 H2O

KOH + Cu(NO3) = KNO3 + CuOH =>
KOH + Cu(NO3) = KNO3 + CuOH

K4Fe(CN)6 + H2SO4 + H2O = K2SO4 + FeSO4 + (NH4)2SO4 + CO =>
K4Fe(CN)6 + 6 H2SO4 + 6 H2O = 2 K2SO4 + FeSO4 + 3(NH4)2SO4 + 6 CO

K + B3O3 = K2O + B =>
6 K + B3O3 = 3 K2O + 3 B

K2Cr2O7 + NH4OH = Cr(OH)3 + N2 + KOH + H2O =>
K2Cr2O7 + 2 NH4OH = 2 Cr(OH)3 + N2 + 2 KOH + H2O

CrO2{-} + S2O8{2-} + H2O = CrO4{2-} + SO4{2-} + H{+} =>
2 CrO2{-} + 3 S2O8{2-} + 4 H2O = 2 CrO4{2-} + 6 SO4{2-} + 8 H{+}

MgO + C20H14O4 = Mg(OH)2 + C20H12O3 =>
MgO + C20H14O4 = Mg(OH)2 + C20H12O3

BaCO3 = BaC + O =>
BaCO3 = BaC + 3 O

Mg(s) + CuCl2(aq) = MgCl2(aq) + Cu(s) =>
Mg(s) + CuCl2(aq) = MgCl2(aq) + Cu(s)

Al(OH)3 + H2SO4 = Al2O12S3 + H2O =>
2 Al(OH)3 + 3 H2SO4 = Al2O12S3 + 6 H2O

KCrO2 + KBiO3 + H2SO4 = K2Cr2O7 + Bi2(SO4)3 + K2SO4 + H2O =>
4 KCrO2 + 6 KBiO3 + 12 H2SO4 = 2 K2Cr2O7 + 3 Bi2(SO4)3 + 3 K2SO4 + 12 H2O

CdBr2 = Cd + Br2 =>
CdBr2 = Cd + Br2

FeCl2 + KNCS = K4Fe(NCS)6 + KCl =>
FeCl2 + 6 KNCS = K4Fe(NCS)6 + 2 KCl

Al + KOH + H2SO4 = Al(SO4)2K2SO4(H2O)2 + H2 =>
Al + 2 KOH + 3 H2SO4 = Al(SO4)2K2SO4(H2O)2 + 2 H2

S2O3{-2} + Sb2O5 + H{+} + H2O = SbO + H2SO3 =>
3 S2O3{-2} + 2 Sb2O5 + 6 H{+} + 3 H2O = 4 SbO + 6 H2SO3

BaCl2(aq) + K2SO4 = BaSO4 + KCl =>
BaCl2(aq) + K2SO4 = BaSO4 + 2 KCl

MnSO4 + Cl + NaOH = Na2MnO4 + NaCl + Na2SO4 + H2O =>
MnSO4 + 4 Cl + 8 NaOH = Na2MnO4 + 4 NaCl + Na2SO4 + 4 H2O

P4O9 + NaOH = Na2HPO4 + Na2HPO3 + H2O =>
P4O9 + 8 NaOH = 3 Na2HPO4 + Na2HPO3 + 2 H2O

Cr + Fe(OH)2 = Cr(OH)3 + Fe =>
2 Cr + 3 Fe(OH)2 = 2 Cr(OH)3 + 3 Fe

C2H5OH + KMnO4 + H2SO4 = CH3CHO + Mn2SO4 + K2SO4 + H2O =>
6 C2H5OH + 2 KMnO4 + 2 H2SO4 = 6 CH3CHO + Mn2SO4 + K2SO4 + 8 H2O

S8(l) + Cl2(g) = S2Cl2(g) =>
S8(l) + 4 Cl2(g) = 4 S2Cl2(g)

Ba + HOH = Ba(OH)2 + H2 =>
Ba + 2 HOH = Ba(OH)2 + H2

NO + H2O = NH3 + O2 =>
4 NO + 6 H2O = 4 NH3 + 5 O2

HNO3 + CH3CH2CH2NH2 = CH3CH2CH2OH + N2 + H2O =>
3 HNO3 + 5 CH3CH2CH2NH2 = 5 CH3CH2CH2OH + 4 N2 + 4 H2O

MgO + C20H14O4 = MgOC20H14O4 =>
MgO + C20H14O4 = MgOC20H14O4

Ca(OH)2 + H2SO4 = CaSO4 + H2O =>
Ca(OH)2 + H2SO4 = CaSO4 + 2 H2O

HCl + CaCO3 = CaCl2 + H2O + CO2 =>
2 HCl + CaCO3 = CaCl2 + H2O + CO2

Pb + H2SO4 = Pb2(SO4)2 + H2 =>
2 Pb + 2 H2SO4 = Pb2(SO4)2 + 2 H2

NaCl(s) + H2SO4 = Na2SO4 + HCl =>
2 NaCl(s) + H2SO4 = Na2SO4 + 2 HCl

C6H14O2N2 + O2 = CO2 + NH3 + H2O =>
C6H14O2N2 + 7 O2 = 6 CO2 + 2 NH3 + 4 H2O

CaS + H2O = Ca(HS)2 + Ca(OH)2 =>
2 CaS + 2 H2O = Ca(HS)2 + Ca(OH)2

ZnO + CuO = Zn98Cu02O + O2 =>
196 ZnO + 4 CuO = 2 Zn98Cu02O + 99 O2

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