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Équations chimiques équilibrées sur02/09/25

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KMnO4 + H2O + VOCl2 = H3VO4 + KCl + MnCl2 + HCl =>
KMnO4 + 11 H2O + 5 VOCl2 = 5 H3VO4 + KCl + MnCl2 + 7 HCl

ZnS + H2SO4 = ZnSO4 + H2 + S =>
ZnS + H2SO4 = ZnSO4 + H2 + S

Na2S + H3AsO4 = Na2SO4 + HAsO2 + H2O =>
Na2S + 4 H3AsO4 = Na2SO4 + 4 HAsO2 + 4 H2O

P4H10 + H2O = H3PO4 + H2 =>
P4H10 + 16 H2O = 4 H3PO4 + 15 H2

C5H10 + C4H10 = C5H12 =>
C5H10 + 5 C4H10 = 5 C5H12

C4H8(OH)2 + KMnO4 + H2SO4 = CH3COOH + MnSO4 + K2SO4 + H2O =>
5 C4H8(OH)2 + 6 KMnO4 + 9 H2SO4 = 10 CH3COOH + 6 MnSO4 + 3 K2SO4 + 14 H2O

K + CdBr2 = KBr + Cd =>
2 K + CdBr2 = 2 KBr + Cd

CrBr3 + NaOH + Cl2 = Na2CrO4 + NaBrO + NaCl + H2O =>
2 CrBr3 + 28 NaOH + 9 Cl2 = 2 Na2CrO4 + 6 NaBrO + 18 NaCl + 14 H2O

C4H8 + KMnO4 = CH3COOK + KOH + MnO2 + H2O =>
3 C4H8 + 8 KMnO4 = 6 CH3COOK + 2 KOH + 8 MnO2 + 2 H2O

(NiOH)2SO4 + NH4OH + (NH4)2SO4 = [Ni(NH3)4]SO4 + H2O =>
(NiOH)2SO4 + 6 NH4OH + (NH4)2SO4 = 2[Ni(NH3)4]SO4 + 8 H2O

Pb(CH3COO)2 + K2CO3 + H2O = Pb(OH)2 + CO2 + CH3COOK =>
Pb(CH3COO)2 + K2CO3 + H2O = Pb(OH)2 + CO2 + 2 CH3COOK

K2(Cr2O7) + Ca3(PO4)2 = K3(PO4) + Ca(Cr2O7) =>
3 K2(Cr2O7) + Ca3(PO4)2 = 2 K3(PO4) + 3 Ca(Cr2O7)

I2 + I{-} = I3{-} =>
I2 + I{-} = I3{-}

CoCl2 + C2H8N2 + H2O2 + HCl = [Co(C2H8N2)2Cl2]Cl + H2O =>
2 CoCl2 + 4 C2H8N2 + H2O2 + 2 HCl = 2[Co(C2H8N2)2Cl2]Cl + 2 H2O

KMnO4 + KNO2 + H2SO4 = KNO3 + MnSO4 + K2SO4 + H2O =>
2 KMnO4 + 5 KNO2 + 3 H2SO4 = 5 KNO3 + 2 MnSO4 + K2SO4 + 3 H2O

C2H5HOH + OH = CO2 + H2O =>
C2H5HOH + 13 OH = 2 CO2 + 10 H2O

CH3CHOHCH2CH3 + K2CrO7 + H2SO4 = CO2 + Cr2(SO4)3 + K2SO4 + H2O =>
3 CH3CHOHCH2CH3 + 8 K2CrO7 + 20 H2SO4 = 12 CO2 + 4 Cr2(SO4)3 + 8 K2SO4 + 35 H2O

K2CO3 + SnCl4 = Sn(CO3)2 + KCl =>
2 K2CO3 + SnCl4 = Sn(CO3)2 + 4 KCl

H2SO4 + AlI3 = H2S + Al2(SO4)3 + I2 + water =>
15 H2SO4 + 8 AlI3 = 3 H2S + 4 Al2(SO4)3 + 12 I2 + 12 H2O

Fr(OH)2 + CO2 = FrCO3 + H2O =>
Fr(OH)2 + CO2 = FrCO3 + H2O

N2H4 + H2O2 = N2 + H2O =>
N2H4 + 2 H2O2 = N2 + 4 H2O

C10H16O + NaBH4 + CH3OH = C10H18O + B(OCH3)4Na =>
4 C10H16O + NaBH4 + 4 CH3OH = 4 C10H18O + B(OCH3)4Na

NaOH + Cl2 = (NaCl) + (NaClO) + H2O =>
2 NaOH + Cl2 = (NaCl) + (NaClO) + H2O

Cr2O7{-}2{-} + H{+} + Cl{-} = Cr + Cl2 + H2O =>
2 Cr2O7{-}2{-} + 28 H{+} + 26 Cl{-} = 4 Cr + 13 Cl2 + 14 H2O

CH3CH2CH2CH2NH2 + HCl = CH3CH2CH2CH2NH3Cl =>
CH3CH2CH2CH2NH2 + HCl = CH3CH2CH2CH2NH3Cl

S2Fe + H2O + O2 = FeSO4 + H2SO4 =>
2 S2Fe + 2 H2O + 7 O2 = 2 FeSO4 + 2 H2SO4

Na3P + Na2Cr2O7 + HCl = Na3PO4 + CrCl3 + NaCl + H2O =>
3 Na3P + 4 Na2Cr2O7 + 32 HCl = 3 Na3PO4 + 8 CrCl3 + 8 NaCl + 16 H2O

H{3+}BO{3} = H{4+}B{6+}O{11+} + H{2+}O =>
2 H{3+}BO{3} = H{4+}B{6+}O{11+} + H{2+}O

Fe0 + Cu2{+} = Cu + Fe2{+} =>
2 Fe0 + Cu2{+} = 2 Cu + Fe2{+}

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

KBrO3 + KI + HNO3 = Br2 + KNO3 + KIO3 + H2O =>
6 KBrO3 + 5 KI + 6 HNO3 = 3 Br2 + 6 KNO3 + 5 KIO3 + 3 H2O

CH3COK = CH3CO + K =>
CH3COK = CH3CO + K

OHC2H4OH + CH3COOH = CH3COOC2H4 + H2O =>
3 OHC2H4OH + CH3COOH = 2 CH3COOC2H4 + 4 H2O

ZnO + NaOH + H2O = Na2Zn(OH)4 =>
ZnO + 2 NaOH + H2O = Na2Zn(OH)4

NO(g) + H2O(l) + Zn{2+}(aq) = HNO2(aq) + Zn(s) + H{+}(aq) =>
2 NO(g) + 2 H2O(l) + Zn{2+}(aq) = 2 HNO2(aq) + Zn(s) + 2 H{+}(aq)

C + S + NaNO3 = CO2 + N2 + Na2S =>
3 C + S + 2 NaNO3 = 3 CO2 + N2 + Na2S

CH3NHCH3(aq) + H2SO4(aq) = NHCH3(aq) + CH3SO4 + H2(g) =>
CH3NHCH3(aq) + H2SO4(aq) = NHCH3(aq) + CH3SO4 + H2(g)

Cu + Al2(SO3)3 = Al + Cu(SO3)3 =>
Cu + Al2(SO3)3 = 2 Al + Cu(SO3)3

Si + O = SiO7 =>
Si + 7 O = SiO7

H2O + Sn{2+} + Bi(NO3)3 = Bi + Sn(OH)4 + NO2 + H{+} =>
9 H2O + 3 Sn{2+} + Bi(NO3)3 = Bi + 3 Sn(OH)4 + 3 NO2 + 6 H{+}

Li2O + HOH = LiOH =>
Li2O + HOH = 2 LiOH

Fe2O3 + NaNO3 + NaOH = Na2FeO4 + NO + H2O =>
Fe2O3 + 2 NaNO3 + 2 NaOH = 2 Na2FeO4 + 2 NO + H2O

N(H3) + HCl = N(H4)Cl =>
N(H3) + HCl = N(H4)Cl

CrCl2 + K2Cr2O7 + HCl = CrCl3 + K3CrO3 + H2O =>
18 CrCl2 + 3 K2Cr2O7 + 30 HCl = 22 CrCl3 + 2 K3CrO3 + 15 H2O

H{+)+MnO4{-}+H2SO3 = Mn{+2}+HSO4{-}+H2O =>
H{+)+2MnO4{-}+5H2SO3 = 2 Mn{+2}+5HSO4{-}+3H2O

K2Cr2O7 + S + H2O = K2SO4 + H2CrO4 + H =>
K2Cr2O7 + S + 5 H2O = K2SO4 + 2 H2CrO4 + 6 H

ClO{-} + H2SO4 = SO4{-2} + HClO =>
2 ClO{-} + H2SO4 = SO4{-2} + 2 HClO

GaN + Al2O3 = GaAlN + O2 =>
4 GaN + 2 Al2O3 = 4 GaAlN + 3 O2

CuS(s) + HNO3(aq) = CuS(NO3)2(aq) + NO2(g) + H2O(l) =>
CuS(s) + 4 HNO3(aq) = CuS(NO3)2(aq) + 2 NO2(g) + 2 H2O(l)

Ag(NO3) + NaCl = AgCl + Na(NO3) =>
Ag(NO3) + NaCl = AgCl + Na(NO3)

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