| Équations équilibrées la veille | Équations équilibrées le lendemain |
10 NaNO2 + 2 KMnO4 + 8 H2SO4 = 10 NO2 + K2SO4 + 5 Na2SO4 + 2 MnSO4 + 8 H2O
SiO2 + HF = SiF4 + H2O =>
SiO2 + 4 HF = SiF4 + 2 H2O
CaCl2 + NaHCO3 = NaCl + CaCO3 + CO2 + H2O =>
CaCl2 + 2 NaHCO3 = 2 NaCl + CaCO3 + CO2 + H2O
KI(aq) + BaS(aq) = KS(aq) + BaI(aq) =>
KI(aq) + BaS(aq) = KS(aq) + BaI(aq)
NaNO3 + AgCl + NH4OH = NH4Cl + AgNO3 + NaOH =>
NaNO3 + AgCl + NH4OH = NH4Cl + AgNO3 + NaOH
HCl + NaNO2 = HNO2 + NaCl =>
HCl + NaNO2 = HNO2 + NaCl
HCl + Na3C6H5O7 = NaCl + H3C6H5O7 = =>
3 HCl + Na3C6H5O7 = 3 NaCl + H3C6H5O7
Cu(NO3)2 + (NH4) = Cu + NH4(NO3)2 =>
Cu(NO3)2 + (NH4) = Cu + NH4(NO3)2
KBr(aq) + CaS(aq) = K2S(aq) + CaBr2(aq) =>
2 KBr(aq) + CaS(aq) = K2S(aq) + CaBr2(aq)
Fe(NO3)3 = Fe2O3 + NO2 + O2 =>
4 Fe(NO3)3 = 2 Fe2O3 + 12 NO2 + 3 O2
KMnO4 + H2SO4 + SCNNa = SO4K2 + SO4Mn + CNH + H2O + SO4Na2 =>
12 KMnO4 + 13 H2SO4 + 10 SCNNa = 6 SO4K2 + 12 SO4Mn + 10 CNH + 8 H2O + 5 SO4Na2
CrI6 + MgCrO4 = MgI2 + Cr2(CrO4)6 =>
2 CrI6 + 6 MgCrO4 = 6 MgI2 + Cr2(CrO4)6
KMnO4 + H2SO4 = KHSO4 + Mn2O7 + H2O =>
2 KMnO4 + 2 H2SO4 = 2 KHSO4 + Mn2O7 + H2O
CaCO3 + HCl = CaCl(aq) + CO3 + H(g) =>
CaCO3 + HCl = CaCl(aq) + CO3 + H(g)
CaSO3 = S2O4 + CaO =>
2 CaSO3 = S2O4 + 2 CaO
Cu + S9 = CuS =>
9 Cu + S9 = 9 CuS
KHCO3(s) + HCl(l) = KCl + CO2 + H2O =>
KHCO3(s) + HCl(l) = KCl + CO2 + H2O
NaOH + H2C6H6O6 = Na2C6H6O6 + H2O =>
2 NaOH + H2C6H6O6 = Na2C6H6O6 + 2 H2O
K3(PO4) + Mg(NO3)2 = K3(NO3)2 + Mg(PO4) =>
K3(PO4) + Mg(NO3)2 = K3(NO3)2 + Mg(PO4)
Si + Be = SiBe =>
Si + Be = SiBe
Cu + HNO3 = Cu(NO3)2 + NO(g) + H2O =>
3 Cu + 8 HNO3 = 3 Cu(NO3)2 + 2 NO(g) + 4 H2O
C2H5OH + K2Cr2O7 + H2SO4 = C2H3COOH + Cr2(SO4)3 + K2SO4 + H2O =>
3 C2H5OH + 2 K2Cr2O7 + 8 H2SO4 = 2 C2H3COOH + 2 Cr2(SO4)3 + 2 K2SO4 + 13 H2O
Al + CuCl2 = AlCl3 + Cu =>
2 Al + 3 CuCl2 = 2 AlCl3 + 3 Cu
Li3PO4 + Ni(NO3)2 = Ni3(PO4)2 + Li(NO3) =>
2 Li3PO4 + 3 Ni(NO3)2 = Ni3(PO4)2 + 6 Li(NO3)
CO + H3 = CH4 + H2O =>
CO + 2 H3 = CH4 + H2O
Pt + H2O = PtOH + H2 =>
2 Pt + 2 H2O = 2 PtOH + H2
O2 + Sb2S3 = Sb2O4 + SO2 =>
5 O2 + Sb2S3 = Sb2O4 + 3 SO2
Al(OH)3 + C2O4{2-} + H2C2O4*2H2O = Al(C2O4)3{3-}*3H2O + H2O =>
2 Al(OH)3 + 3 C2O4{2-} + 3 H2C2O4*2H2O = 2 Al(C2O4)3{3-}*3H2O + 12 H2O
Ba + CO2 = BaO + CO =>
Ba + CO2 = BaO + CO
Fe(NO3)2 + H2O = Fe + O2 + HNO3 =>
2 Fe(NO3)2 + 2 H2O = 2 Fe + O2 + 4 HNO3
K2Cr2O7 + H2SO4 + C2H6O + H2O = K2Cr2(SO4)4*24H2O + C2H4O =>
K2Cr2O7 + 4 H2SO4 + 3 C2H6O + 17 H2O = K2Cr2(SO4)4*24H2O + 3 C2H4O
CO + Cu = COCu =>
CO + Cu = COCu
Fe(OH)3 + Br2 + NaOH = Na[FeO4] + NaBr + H2O =>
Fe(OH)3 + 2 Br2 + 5 NaOH = Na[FeO4] + 4 NaBr + 4 H2O
CuFeS2 + H2O + O2 = Fe2O3 + H2SO4 + Cu =>
4 CuFeS2 + 8 H2O + 15 O2 = 2 Fe2O3 + 8 H2SO4 + 4 Cu
NaNO3 + PbO = Pb(NO3)2 + Na2O =>
2 NaNO3 + PbO = Pb(NO3)2 + Na2O
NH5 + O2 = NO + H2O =>
4 NH5 + 7 O2 = 4 NO + 10 H2O
N2 + H2 = NH3 =>
N2 + 3 H2 = 2 NH3
BaCl2(aq) + NaNO3(aq) = Ba(NO3)2(aq) + NaCl(aq) =>
BaCl2(aq) + 2 NaNO3(aq) = Ba(NO3)2(aq) + 2 NaCl(aq)
K2S + NaNO3 = K2SO4 + NaNO2 =>
K2S + 4 NaNO3 = K2SO4 + 4 NaNO2
H2SeO2 + CH6N4O = Se + CO + H2O + N2 =>
3 H2SeO2 + CH6N4O = 3 Se + CO + 6 H2O + 2 N2
H4As2O5 + KOH = K3(HAs2O5) + H2O =>
H4As2O5 + 3 KOH = K3(HAs2O5) + 3 H2O
AlCl3 + KMnO4 + H2SO4 = Al2(SO4)3 + K2SO4 + MnSO4 + Cl2 + H2O =>
10 AlCl3 + 6 KMnO4 + 24 H2SO4 = 5 Al2(SO4)3 + 3 K2SO4 + 6 MnSO4 + 15 Cl2 + 24 H2O
Pb(NO3)2 + NH3 = Pb(NH3)2 + NO3 =>
Pb(NO3)2 + 2 NH3 = Pb(NH3)2 + 2 NO3
HCl + CaH2 = CaCl + H3 =>
HCl + CaH2 = CaCl + H3
C10H14O2 + H2O2 = C10H12O2 + H2O =>
C10H14O2 + H2O2 = C10H12O2 + 2 H2O
C7H16 + O2 = COCO2 + H2O =>
4 C7H16 + 37 O2 = 14 COCO2 + 32 H2O
Na + H2O = NaOH + H2 =>
2 Na + 2 H2O = 2 NaOH + H2
O3 + Mn = Mn2O7 =>
7 O3 + 6 Mn = 3 Mn2O7
CH3(CH2)2COOH + CaCO3 = (CH3(CH2)2COO)2Ca + CO2 + H2O =>
2 CH3(CH2)2COOH + CaCO3 = (CH3(CH2)2COO)2Ca + CO2 + H2O
HPO3 + Sr(OH)2 = Sr3(PO4)2 + H2O =>
2 HPO3 + 3 Sr(OH)2 = Sr3(PO4)2 + 4 H2O
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