| Équations équilibrées la veille |
4 Sm(NO3)3 = 2 Sm2O3 + 12 NO2 + 3 O2
Ag2S + HNO3 = AgNO3 + N2 + H2O + SO2 =>
5 Ag2S + 16 HNO3 = 10 AgNO3 + 3 N2 + 8 H2O + 5 SO2
Cr2O3 + CCl4 = CrCl3 + COCl2 =>
Cr2O3 + 3 CCl4 = 2 CrCl3 + 3 COCl2
Ca + CuCl2 = CaCl2 + Cu2 =>
2 Ca + 2 CuCl2 = 2 CaCl2 + Cu2
P2O3 + HNO3 + H2O = H3PO4 + NO =>
3 P2O3 + 4 HNO3 + 7 H2O = 6 H3PO4 + 4 NO
Na2SO4 + NaOH = Na2OH + NaSO4 =>
Na2SO4 + NaOH = Na2OH + NaSO4
Pb{2+} + I = PbI{2} =>
Pb{2+} + I = PbI{2}
NaOH + Cl2O7 = NaCl + H2O + O2 =>
2 NaOH + Cl2O7 = 2 NaCl + H2O + 4 O2
C2H2 + O2 = CO2 + H2O =>
2 C2H2 + 5 O2 = 4 CO2 + 2 H2O
B + C = B4C3 =>
4 B + 3 C = B4C3
Cl2 + NaCO3 = NaOCl + CO2 =>
Cl2 + 2 NaCO3 = 2 NaOCl + 2 CO2
BaC2O4 + NaMnO4 + H2TeO4 = BaTeO4 + Na2TeO4 + MnTeO4 + H2O + CO2 =>
5 BaC2O4 + 2 NaMnO4 + 8 H2TeO4 = 5 BaTeO4 + Na2TeO4 + 2 MnTeO4 + 8 H2O + 10 CO2
C6H4NO2CH3 + KMnO4 + H2SO4 = C6H4NO2COOH + K2SO4 + MnSO4 + H2O =>
5 C6H4NO2CH3 + 6 KMnO4 + 9 H2SO4 = 5 C6H4NO2COOH + 3 K2SO4 + 6 MnSO4 + 14 H2O
Ag2HPO4 + H2SO4 = Ag2SO4 + H2O + HPO3 =>
Ag2HPO4 + H2SO4 = Ag2SO4 + H2O + HPO3
K2Cr2O7 + CrCl2 + H2SO4 = Cr2(SO4)3 + K2SO4 + Cl2 + H2O =>
K2Cr2O7 + 2 CrCl2 + 7 H2SO4 = 2 Cr2(SO4)3 + K2SO4 + 2 Cl2 + 7 H2O
Ni + CH3COOH = CH3COONi + H2 =>
2 Ni + 2 CH3COOH = 2 CH3COONi + H2
CrCl3 + KOH + H2O = K3(Cr(OH)6) + HCl =>
CrCl3 + 3 KOH + 3 H2O = K3(Cr(OH)6) + 3 HCl
Cd + NO3 = Cd2NO3 =>
2 Cd + NO3 = Cd2NO3
Mg + O2 = MgO =>
2 Mg + O2 = 2 MgO
Cl2 + NaCO3 = NaOCl + CO2 =>
Cl2 + 2 NaCO3 = 2 NaOCl + 2 CO2
CaS + HNO3 = Ca(NO3)2 + S + NO2 + H2O =>
CaS + 4 HNO3 = Ca(NO3)2 + S + 2 NO2 + 2 H2O
IO3 + HSO4 = I2 + SO4 + HH2O =>
2 IO3 + 18 HSO4 = I2 + 18 SO4 + 6 HH2O
Mg(OH)2 + NaCl = NaOH + MgCl2 =>
Mg(OH)2 + 2 NaCl = 2 NaOH + MgCl2
NaOH + Cl2O7 = NaCl + H2O + O2 =>
2 NaOH + Cl2O7 = 2 NaCl + H2O + 4 O2
Cr2O7{2-} + Sn + H{+} = Cr{3+} + Sn{4+} + H2O =>
2 Cr2O7{2-} + 3 Sn + 28 H{+} = 4 Cr{3+} + 3 Sn{4+} + 14 H2O
NaHCO3 + SO2 + O2 = NaSO4 + H2O + CO2 =>
4 NaHCO3 + 4 SO2 + 3 O2 = 4 NaSO4 + 2 H2O + 4 CO2
NaSbO2 + [Ag(NH3)3]OH + H2O = Ag + Na[Sb(OH)6] + NH3 =>
NaSbO2 + 2[Ag(NH3)3]OH + 2 H2O = 2 Ag + Na[Sb(OH)6] + 6 NH3
B + C = B4C3 =>
4 B + 3 C = B4C3
Pb + CN = Pb(CN)2 =>
Pb + 2 CN = Pb(CN)2
SiH4 + KClO + KOH = K2SiO3 + H2O + KCl =>
SiH4 + 4 KClO + 2 KOH = K2SiO3 + 3 H2O + 4 KCl
Pb + Cu(NO3)2 = Pb(NO3)2 + Cu =>
Pb + Cu(NO3)2 = Pb(NO3)2 + Cu
CH4 + F2 = CHF3 + HF =>
CH4 + 3 F2 = CHF3 + 3 HF
Pb(OCN)2 + NH3 + H2O = PbO + NH4OCN = H2NCONH2 =>
Pb(OCN)2 + 2 NH3 + H2O = PbO + 2 NH4OCN
(NH4)2CO3 = NH3 + H2O + CO2 =>
(NH4)2CO3 = 2 NH3 + H2O + CO2
H2O2 = H2O + O2 =>
2 H2O2 = 2 H2O + O2
Na + Al2(SO4)3 = Na2SO4 + Al =>
6 Na + Al2(SO4)3 = 3 Na2SO4 + 2 Al
H2O = H2 + O2 =>
2 H2O = 2 H2 + O2
C4H10 + O2 = CO2 + H2O =>
2 C4H10 + 13 O2 = 8 CO2 + 10 H2O
Fe(NO3)3 + Ca(OH)2 = Fe(OH)3 + Ca(NO3)2 =>
2 Fe(NO3)3 + 3 Ca(OH)2 = 2 Fe(OH)3 + 3 Ca(NO3)2
Pb(OCN)2 + NH3 + H2O = PbO + NH4OCN = H2NCONH2 =>
Pb(OCN)2 + 2 NH3 + H2O = PbO + 2 NH4OCN
ZnAg = AgZn =>
ZnAg = AgZn
K + H2O = KOH + H2 =>
2 K + 2 H2O = 2 KOH + H2
S + OH{-} = SO32{-} + HS{-} + H2O =>
65 S + 65 OH{-} = 2 SO32{-} + 63 HS{-} + H2O
Pb(OCN)2 + NH3 + H2O = (NH2)2CO + Pb(OH)2 =>
Pb(OCN)2 + 2 NH3 + 2 H2O = 2(NH2)2CO + Pb(OH)2
PbCl2 + KC2H3O2 = Pb(C2H3O2)2 + KCl =>
PbCl2 + 2 KC2H3O2 = Pb(C2H3O2)2 + 2 KCl
P2O3 + HNO3 + H2O = H3PO4 + NO2 =>
P2O3 + 4 HNO3 + H2O = 2 H3PO4 + 4 NO2
Pb(OCN)2 + NH3 + H2O = Pb(OH)2 + CH4N2O =>
Pb(OCN)2 + 2 NH3 + 2 H2O = Pb(OH)2 + 2 CH4N2O
K2Cr2O7 + H2SO4 + CrCl2 = K2SO4 + Cr2(SO4)3 + H2O + CrCl3 =>
K2Cr2O7 + 7 H2SO4 + 6 CrCl2 = K2SO4 + 2 Cr2(SO4)3 + 7 H2O + 4 CrCl3
Pb(OCN)2 + NH3 + H2O = Pb(OH)2 + NH4(OCN) =>
Pb(OCN)2 + 2 NH3 + 2 H2O = Pb(OH)2 + 2 NH4(OCN)
V2O3 + KClO3 + KOH = KCl + KVO3 + H2O =>
3 V2O3 + 2 KClO3 + 6 KOH = 2 KCl + 6 KVO3 + 3 H2O
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