| Équations équilibrées la veille | Équations équilibrées le lendemain |
3 H2CO3 + 2 Cr(OH)3 = 6 H2O + (Cr)2(CO3)3
C12H22O11 + O2 = CO2 + H2O =>
C12H22O11 + 12 O2 = 12 CO2 + 11 H2O
Ba + HNO3 = Ba(NO3)2 + H2 =>
Ba + 2 HNO3 = Ba(NO3)2 + H2
K2CrO4 + H2S = Cr(OH)3 + S + KHS + H2O =>
2 K2CrO4 + 7 H2S = 2 Cr(OH)3 + 3 S + 4 KHS + 2 H2O
Na2O2 + KI + HNO3 = NaNO3 + KNO3 + I + H2O =>
Na2O2 + 2 KI + 4 HNO3 = 2 NaNO3 + 2 KNO3 + 2 I + 2 H2O
NaPO3 + MnO2 = Na3PO4 + Mn3(PO4)4 =>
6 NaPO3 + 3 MnO2 = 2 Na3PO4 + Mn3(PO4)4
OH{-} + C14H12Br2 = H2O + Br{-} + C14H10 =>
2 OH{-} + C14H12Br2 = 2 H2O + 2 Br{-} + C14H10
Al + SiO2 = AlO2 + Si =>
Al + SiO2 = AlO2 + Si
Na2Cr2O7 + KI + H2SO4 = Cr2(SO4)3 + I2 + Na2SO4 + K2SO4 + H2O =>
Na2Cr2O7 + 6 KI + 7 H2SO4 = Cr2(SO4)3 + 3 I2 + Na2SO4 + 3 K2SO4 + 7 H2O
HCl + CH3COOAg = CH3Cl + HCOOAg =>
HCl + CH3COOAg = CH3Cl + HCOOAg
ZnS + HNO3 = Zn(NO3)2 + H2S =>
ZnS + 2 HNO3 = Zn(NO3)2 + H2S
Na3PO4 + AgNO3 = NaNO3 + Ag3PO4 =>
Na3PO4 + 3 AgNO3 = 3 NaNO3 + Ag3PO4
CoBr3 + K2S = BrK + Co2S3 =>
2 CoBr3 + 3 K2S = 6 BrK + Co2S3
Cr2O3 + H2O2 + KOH = K2Cr2O7 + H2O =>
Cr2O3 + 3 H2O2 + 2 KOH = K2Cr2O7 + 4 H2O
NaHCO3 + H2C6H5O7 = CO2 + H2O + Na3C5H5O7 =>
51 NaHCO3 + 14 H2C6H5O7 = 50 CO2 + 32 H2O + 17 Na3C5H5O7
CH3CH2COH3 + O2 = CO2 + H2O =>
2 CH3CH2COH3 + 9 O2 = 6 CO2 + 8 H2O
Al(s) + H2SO4(aq) = Al2(SO4)3(aq) + H2(g) =>
2 Al(s) + 3 H2SO4(aq) = Al2(SO4)3(aq) + 3 H2(g)
NaHCO3 + CH3COOH = CH3COONa + H2O + CO2 =>
NaHCO3 + CH3COOH = CH3COONa + H2O + CO2
H5S + O2 = SO2 + H2O =>
4 H5S + 9 O2 = 4 SO2 + 10 H2O
PbO + C = Pb + CO2 =>
2 PbO + C = 2 Pb + CO2
Pb(NO3)2 + HCl = PbCl2(s) + HNO3(aq) =>
Pb(NO3)2 + 2 HCl = PbCl2(s) + 2 HNO3(aq)
Mg2N3 + H2O2 + HCl = H2O + N2 + MgCl2 =>
2 Mg2N3 + 4 H2O2 + 8 HCl = 8 H2O + 3 N2 + 4 MgCl2
H3PO4 + BaS = H2S + Ba3(PO4)2 =>
2 H3PO4 + 3 BaS = 3 H2S + Ba3(PO4)2
AuBr3(aq) + Ag(s) = AgBr(s) + Au3(s) =>
3 AuBr3(aq) + 9 Ag(s) = 9 AgBr(s) + Au3(s)
BrCH2CH2COO + NH3 = CH4CH3COO + NBr =>
BrCH2CH2COO + NH3 = CH4CH3COO + NBr
(NH4)2TiO3 + HCl = (NH4)2TiCl6 + H2O =>
(NH4)2TiO3 + 6 HCl = (NH4)2TiCl6 + 3 H2O
Zn + HC2H302 = ZnHC2 + H302 =>
Zn + HC2H302 = ZnHC2 + H302
CsOH(aq) + H2SO4(aq) = H2O + Cs + SO42 =>
78 CsOH(aq) + H2SO4(aq) = 40 H2O + 78 Cs + SO42
C + H2O = H2 + CO3 =>
C + 3 H2O = 3 H2 + CO3
Cr2O3 + O2 + H2O = H2CrO4 =>
2 Cr2O3 + 3 O2 + 4 H2O = 4 H2CrO4
FeSO4(aq) + NH4NCS(aq) = FeNCS(aq) + NH4SO4 =>
FeSO4(aq) + NH4NCS(aq) = FeNCS(aq) + NH4SO4
MgCl2 + Na2HPO4 = Mg3(PO4)2 + NaCl + H3PO4 =>
3 MgCl2 + 3 Na2HPO4 = Mg3(PO4)2 + 6 NaCl + H3PO4
Mg(OH)2 + SO3 = MgO3 + S(OH)2 =>
Mg(OH)2 + SO3 = MgO3 + S(OH)2
Mn(NO3)3 + Cr = Cr(NO3)3 + Mn =>
Mn(NO3)3 + Cr = Cr(NO3)3 + Mn
Br{-} + O2 + H{+} = Br2 + H2O =>
4 Br{-} + O2 + 4 H{+} = 2 Br2 + 2 H2O
Al + OH{-} + NO3{-} + H2O = [Al(OH)4]{-} + NH3 =>
8 Al + 5 OH{-} + 3 NO3{-} + 18 H2O = 8[Al(OH)4]{-} + 3 NH3
HNO2 + H2S = NO + S + H2O =>
2 HNO2 + H2S = 2 NO + S + 2 H2O
(C6H5)2CO + H2O = H2(C6H5)2 + CO2 =>
(C6H5)2CO + H2O = H2(C6H5)2 + CO2
H{+} + H2S + MnO4{-} = SO4{2-} + Mn{2+} + H2O =>
14 H{+} + 5 H2S + 8 MnO4{-} = 5 SO4{2-} + 8 Mn{2+} + 12 H2O
NH4Cl + HCl = NH3Cl2 + H =>
NH4Cl + HCl = NH3Cl2 + 2 H
N + H2O = NOH + H =>
N + H2O = NOH + H
FeSO4*7H2O = H2O + FeSO4 =>
FeSO4*7H2O = 7 H2O + FeSO4
Zn + Pb(NO)2 = Zn(NO)2 + Pb =>
Zn + Pb(NO)2 = Zn(NO)2 + Pb
Fe2O3 + H2O = Fe(OH)3 =>
Fe2O3 + 3 H2O = 2 Fe(OH)3
CH2ClCOOH + NaHCO3 = NaCl + C2O5 + CH4 =>
CH2ClCOOH + NaHCO3 = NaCl + C2O5 + CH4
C11H14O + CH3COOH + NH4Cl = C10H11N + HCl + CH3COCH3 =>
3 C11H14O + CH3COOH + 2 NH4Cl = 2 C10H11N + 2 HCl + 5 CH3COCH3
CuO + AgNO3 = CuNO3 + AgO =>
CuO + AgNO3 = CuNO3 + AgO
Cr(OH)Cl2 + HNO3 = Cr(NO3)3 + HCl + H2O =>
Cr(OH)Cl2 + 3 HNO3 = Cr(NO3)3 + 2 HCl + H2O
Cu + HNO3(p) = Cu(NO3)2 + NO + H2O =>
3 Cu + 8 HNO3(p) = 3 Cu(NO3)2 + 2 NO + 4 H2O
KOH(s) + H2SO4(l) = K2SO4(s) + H2O(l) =>
2 KOH(s) + H2SO4(l) = K2SO4(s) + 2 H2O(l)
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