| Équations équilibrées la veille |
CrO7 + 6 H = CrO4 + 3 H2O
C6H5CH2OH + K2Cr2O7 + H2SO4 = Cr2(SO4)3 + K2SO4 + C6H5COH + H2O =>
3 C6H5CH2OH + K2Cr2O7 + 4 H2SO4 = Cr2(SO4)3 + K2SO4 + 3 C6H5COH + 7 H2O
C4H8O + NH3 = C8N2H18 + H2O =>
2 C4H8O + 2 NH3 = C8N2H18 + 2 H2O
MnO2 + HCl = MnCl2 + H2O + Cl2 =>
MnO2 + 4 HCl = MnCl2 + 2 H2O + Cl2
Fe2O3 + H2S + H2SO4 = FeSO4 + H2O =>
4 Fe2O3 + H2S + 7 H2SO4 = 8 FeSO4 + 8 H2O
CaCO3MgCO3 + SO2 = CaSO3 + MgSO3 + CO2 =>
CaCO3MgCO3 + 2 SO2 = CaSO3 + MgSO3 + 2 CO2
CuCl2(aq) + NH3(aq) = Cu(NH3)4(aq) + Cl(aq) =>
CuCl2(aq) + 4 NH3(aq) = Cu(NH3)4(aq) + 2 Cl(aq)
NaNO2 + C12H22O11 + S = Na2S + CO2 + H2O + N2 =>
12 NaNO2 + C12H22O11 + 6 S = 6 Na2S + 12 CO2 + 11 H2O + 6 N2
Na2Cr2O7 + KNO2 + H2SO4 = KNO3 + Cr2(SO4)3 + H2O + Na2SO4 =>
Na2Cr2O7 + 3 KNO2 + 4 H2SO4 = 3 KNO3 + Cr2(SO4)3 + 4 H2O + Na2SO4
Fe*2O*3 + H*2 = Fe + H*2O =>
Fe*2O*3 + H*2 = Fe + H*2O
V2O5 + I2 + V + S = V4OS8I6 =>
V2O5 + 15 I2 + 18 V + 40 S = 5 V4OS8I6
NH4AlO2 + CO2 + H2O = NH4HCO3 + Al(OH)3 =>
NH4AlO2 + CO2 + 2 H2O = NH4HCO3 + Al(OH)3
KOH + SiO2 = Si(OH)4 + K2O =>
4 KOH + SiO2 = Si(OH)4 + 2 K2O
HI + NaNO2 + H2SO4 = I2 + NO + Na2SO4 + H2O =>
2 HI + 2 NaNO2 + H2SO4 = I2 + 2 NO + Na2SO4 + 2 H2O
H3PO4(aq) + LiOH(aq) = H2O(l) + H2LiO4P(aq) =>
H3PO4(aq) + LiOH(aq) = H2O(l) + H2LiO4P(aq)
Ag + Fe2O3 = Fe + AgO3 =>
Ag + Fe2O3 = 2 Fe + AgO3
NO2 + H2O = HNO3 + NO =>
3 NO2 + H2O = 2 HNO3 + NO
HNO3 + MnS = Mn2(SO4)3 + Mn(NO3)3 + NO + H2O =>
12 HNO3 + 3 MnS = Mn2(SO4)3 + Mn(NO3)3 + 9 NO + 6 H2O
CuFeS2 + SiO2 + O2 = Cu2S + FeOSi + SO2 =>
2 CuFeS2 + 2 SiO2 + 2 O2 = Cu2S + 2 FeOSi + 3 SO2
C6H7N + FeCl3 + H2O = Fe(OH)3 + C6H5NH3Cl =>
3 C6H7N + FeCl3 + 3 H2O = Fe(OH)3 + 3 C6H5NH3Cl
LiNO3 + Fe(NO3)3 + NH2CH2COOH = LiFe5O8 + N2 + CO2 + H2O =>
9 LiNO3 + 45 Fe(NO3)3 + 80 NH2CH2COOH = 9 LiFe5O8 + 112 N2 + 160 CO2 + 200 H2O
Ba + H3As = Ba3As + H2 =>
6 Ba + 2 H3As = 2 Ba3As + 3 H2
Co2 + CaCl2 = CaCo + Cl =>
Co2 + 2 CaCl2 = 2 CaCo + 4 Cl
Mg + Br = Mg3Br2 =>
3 Mg + 2 Br = Mg3Br2
C12H23O5 + O2 = CO2 + H2O =>
4 C12H23O5 + 61 O2 = 48 CO2 + 46 H2O
ClCH2CO2H + KCN = KCl + CNCH2CO2H =>
ClCH2CO2H + KCN = KCl + CNCH2CO2H
Hg + Cu(NO3)2 = Hg(NO3)3 + Cu =>
2 Hg + 3 Cu(NO3)2 = 2 Hg(NO3)3 + 3 Cu
CH3COOH + CuO = Cu + CH3COO + H2O =>
2 CH3COOH + CuO = Cu + 2 CH3COO + H2O
(HNO3) + Cu = (H2O) + Cu(NO3)2 + (NO2) =>
4(HNO3) + Cu = 2(H2O) + Cu(NO3)2 + 2(NO2)
HgCl + NH4OH = Hg(NH3)Cl + H2O =>
HgCl + NH4OH = Hg(NH3)Cl + H2O
BeCl + NaOH = BeOH + NaCl =>
BeCl + NaOH = BeOH + NaCl
Al4Si3 + O2 = SiO2 + Al =>
Al4Si3 + 3 O2 = 3 SiO2 + 4 Al
Cs3P = Cs + P4 =>
4 Cs3P = 12 Cs + P4
C8N8O16 = CO2(g) + N2(g) =>
C8N8O16 = 8 CO2(g) + 4 N2(g)
HCOOK + AgNO3 + NH3 + H2O = (NH4)2CO3 + Ag + KNO3 =>
9 HCOOK + 10 AgNO3 + 17 NH3 + 6 H2O = 9(NH4)2CO3 + 10 Ag + 9 KNO3
C18H31O2 + C2H5OH = C18H32O2 + H2O =>
8 C18H31O2 + 9 C2H5OH = 9 C18H32O2 + 7 H2O
SO3 = SO2 + O2 =>
2 SO3 = 2 SO2 + O2
Fe(No3)2 + K2Co3 = FeCo3 + KNo3 =>
Fe(No3)2 + K2Co3 = FeCo3 + 2 KNo3
ICl + HI = HCl + I =>
ICl + HI = HCl + 2 I
Fe + Cr{3} = Fe{3}}+Cr =>
Fe + Cr{3} = Fe{3}}+Cr
Ce2(C2O4)3 + (NH4)2C2O4 = (NH4)5[Ce(C2O4)4] =>
Ce2(C2O4)3 + 5(NH4)2C2O4 = 2(NH4)5[Ce(C2O4)4]
H2 + O2 = H2O =>
2 H2 + O2 = 2 H2O
Al2(CO3)3 + HBr = AlBr3 + CO2 + H2O =>
Al2(CO3)3 + 6 HBr = 2 AlBr3 + 3 CO2 + 3 H2O
CH3CH2OK + CH3Cl = CH3CH2OCH3 + KCl =>
CH3CH2OK + CH3Cl = CH3CH2OCH3 + KCl
Na2CO3 + CuSO4 = Na2SO4 + (CO3)Cu =>
Na2CO3 + CuSO4 = Na2SO4 + (CO3)Cu
C6H6CHCH3CH3 + KMnO4 + H2SO4 = C6H6CH2COOH + K2SO4 + MnSO4 + H2O =>
80 C6H6CHCH3CH3 + 118 KMnO4 + 177 H2SO4 = 90 C6H6CH2COOH + 59 K2SO4 + 118 MnSO4 + 292 H2O
Cu(NO3)2 + NaOH = Cu(OH)2 + NaNO3 =>
Cu(NO3)2 + 2 NaOH = Cu(OH)2 + 2 NaNO3
H2 + O2 = H2O =>
2 H2 + O2 = 2 H2O
C2H3COONa + NaOH = Na2C2 + H2O + CO2 =>
5 C2H3COONa + 7 NaOH = 6 Na2C2 + 11 H2O + 3 CO2
Cu2S{+} + H{+} + Cr2O7{-} = Cu{2+} + H2O + SO2 + Cr{3+} =>
Cu2S{+} + 10 H{+} + Cr2O7{-} = 2 Cu{2+} + 5 H2O + SO2 + 2 Cr{3+}
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