| Équations équilibrées la veille |
2 MnO4{-} + 3 H2C2O4 + 10 H{+} = 2 Mn{4+} + 6 CO2 + 8 H2O
HNO3 + C2H6O = CO2 + NO + H2O =>
4 HNO3 + C2H6O = 2 CO2 + 4 NO + 5 H2O
Na + I2 = NaI =>
2 Na + I2 = 2 NaI
FeSO4 + KSCN + H2O2 + S2SO4 = Fe(SCN)6 + H2K(SO4)2 + H2O =>
3 FeSO4 + 18 KSCN + 70 H2O2 + 11 S2SO4 = 3 Fe(SCN)6 + 18 H2K(SO4)2 + 52 H2O
[H]2S[O]4 + Ba[OH]2 = BaS[O]4 + [H]2O =>
[H]2S[O]4 + Ba[OH]2 = BaS[O]4 + 2[H]2O
Na3PO4 + Cu(NO3) = Na3(NO3) + CuPO4 =>
Na3PO4 + Cu(NO3) = Na3(NO3) + CuPO4
Sb4(s) + O2(g) = Sb4O6(s) =>
Sb4(s) + 3 O2(g) = Sb4O6(s)
Fe + KSCN = K + Fe(SCN)3 =>
Fe + 3 KSCN = 3 K + Fe(SCN)3
NH3 + O2 = NO2 + H2O =>
4 NH3 + 7 O2 = 4 NO2 + 6 H2O
NaOH + C20H14O4 + HCl = H2O + Na2C + Cl2 =>
40 NaOH + C20H14O4 + 34 HCl = 44 H2O + 20 Na2C + 17 Cl2
H30 + CaCO3 = H2O + Ca + *CO2 =>
H30 + 15 CaCO3 = 15 H2O + 15 Ca + 15*CO2
KMnO4 + CH3CH2OH + H2SO4 = MnSO4 + K2SO4 + CH3COH + H2O =>
2 KMnO4 + 5 CH3CH2OH + 3 H2SO4 = 2 MnSO4 + K2SO4 + 5 CH3COH + 8 H2O
N2 + O2 = N2O =>
2 N2 + O2 = 2 N2O
Al(OH)NaCl = AlCl + NaOH =>
Al(OH)NaCl = AlCl + NaOH
C5H5N(l) + O2(g) = CO2(g) + H2O(l) + N2(g) =>
4 C5H5N(l) + 25 O2(g) = 20 CO2(g) + 10 H2O(l) + 2 N2(g)
CuCl2 + Fe2S3 = Fe2Cl2 + CuS3 =>
CuCl2 + Fe2S3 = Fe2Cl2 + CuS3
S + HNO3 + BaCl2 = BaSO4 + NO2 + HCl + H2O =>
S + 6 HNO3 + BaCl2 = BaSO4 + 6 NO2 + 2 HCl + 2 H2O
SrH4P6N12 + MgCl2 = MgH4P6N12 + SrCl2 =>
SrH4P6N12 + MgCl2 = MgH4P6N12 + SrCl2
HXeO4{-} = XeO6{4-} + Xe + H2O + O =>
4 HXeO4{-} = XeO6{4-} + 3 Xe + 2 H2O + 8 O
Cr(OH)3 + H = Cr + H2O =>
Cr(OH)3 + 3 H = Cr + 3 H2O
Na + KNO3 = K2O + NO + Na2O =>
6 Na + 2 KNO3 = K2O + 2 NO + 3 Na2O
Mg + HCl = MgCl2 + H2 =>
Mg + 2 HCl = MgCl2 + H2
Rb + HC2H3O2 = RbC2H3O2 + H2 =>
2 Rb + 2 HC2H3O2 = 2 RbC2H3O2 + H2
KCl = K + Cl2 =>
2 KCl = 2 K + Cl2
K + Mn = K2Mn =>
2 K + Mn = K2Mn
Na2CO3 + SiO2 + CaO = Ca2Na2SiO4 + CO3 =>
Na2CO3 + SiO2 + 2 CaO = Ca2Na2SiO4 + CO3
SiCO2 = SiOCO =>
SiCO2 = SiOCO
Cl2(aw) + Br{-}(aq) = Cl{-}(aq) + Br2(aq) =>
Cl2(aw) + 2 Br{-}(aq) = 2 Cl{-}(aq) + Br2(aq)
Cr2O3 + C = CO + Cr =>
Cr2O3 + 3 C = 3 CO + 2 Cr
MgI2 + Mn(SO3)2 = MgSO3 + MnI4 =>
2 MgI2 + Mn(SO3)2 = 2 MgSO3 + MnI4
C3H6 + K2Cr2O7 + H2SO4 = K2SO4 + Cr2(SO4)3 + H2O + CH3COOH =>
2 C3H6 + 2 K2Cr2O7 + 8 H2SO4 = 2 K2SO4 + 2 Cr2(SO4)3 + 8 H2O + 3 CH3COOH
HNO2 + Mg(OH)2 = Mg(NO2)2 + H2O =>
2 HNO2 + Mg(OH)2 = Mg(NO2)2 + 2 H2O
SnCl4 + Na2S*2H2O = SnS2 + NaCl + H2O =>
SnCl4 + 2 Na2S*2H2O = SnS2 + 4 NaCl + 4 H2O
Fe2O3Fe + H2O + O2 = Fe(OH)3 =>
4 Fe2O3Fe + 18 H2O + 3 O2 = 12 Fe(OH)3
Fe2O3 + CO = CO2 + Fe = =>
Fe2O3 + 3 CO = 3 CO2 + 2 Fe
KI + H2O2 + H2SO4 = I2 + K4SO4 + H2O =>
4 KI + H2O2 + H2SO4 = 2 I2 + K4SO4 + 2 H2O
CO2 + La(HO)3 = C(OH)4 + La2O3 =>
3 CO2 + 4 La(HO)3 = 3 C(OH)4 + 2 La2O3
NaOH(s) + CO2(g) = Na2CO3(s) + H2O(l) =>
2 NaOH(s) + CO2(g) = Na2CO3(s) + H2O(l)
Ca2Si + HBr = Si + H2 + Ca2Br =>
2 Ca2Si + 2 HBr = 2 Si + H2 + 2 Ca2Br
(CH3)2CHCH2OH + CH3COOH = (CH3)2CHCH2OOCCH3 + H2O =>
(CH3)2CHCH2OH + CH3COOH = (CH3)2CHCH2OOCCH3 + H2O
PbCrO4NaOH = Na2CrO4Pb2CrO5H2O =>
2 PbCrO4NaOH = Na2CrO4Pb2CrO5H2O
K2CrO4 + H2SO4 = K2SO4 + H2CrO4 =>
K2CrO4 + H2SO4 = K2SO4 + H2CrO4
Al + H2SeO4 = Al(SeO4)3 + H2 =>
Al + 3 H2SeO4 = Al(SeO4)3 + 3 H2
CrO4{-} + H{+} = HCrO4 =>
CrO4{-} + H{+} = HCrO4
AlCl3 + KOH = Al(OH)3 + KCl =>
AlCl3 + 3 KOH = Al(OH)3 + 3 KCl
KMnO4 + HBr = MnBr2 + Br2 + KBr + H2O2 =>
2 KMnO4 + 8 HBr = 2 MnBr2 + Br2 + 2 KBr + 4 H2O2
H(No3) + KSCN = H(SCN) + KNo3 =>
H(No3) + KSCN = H(SCN) + KNo3
H2SO4 + LiOH = H2O + LiHSO4 =>
H2SO4 + LiOH = H2O + LiHSO4
CuSO4(aq) + Na3PO4(aq) = CuPO4(s) + SO4Na3(aq) =>
CuSO4(aq) + Na3PO4(aq) = CuPO4(s) + SO4Na3(aq)
Zn + Cr2O3 = Cr + ZnO =>
3 Zn + Cr2O3 = 2 Cr + 3 ZnO
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