| Équations équilibrées la veille |
2 NaNO2 + 2 KBr + 4 CH3COOH = Br2 + 2 NO + 2 CH3COONa + 2 CH3COOK + 2 H2O
C2H3S2 + O2 = CO2 + H2O + SO2 =>
4 C2H3S2 + 19 O2 = 8 CO2 + 6 H2O + 8 SO2
K2CO3(aq) + Sr(NO3)2(aq) = KNO3 + SrCO3 =>
K2CO3(aq) + Sr(NO3)2(aq) = 2 KNO3 + SrCO3
HNO3 + Cu2 = Cu(NO3)2 + H =>
4 HNO3 + Cu2 = 2 Cu(NO3)2 + 4 H
Cu(NH2)2 + HNO3 = Cu(NO3)2 + NH4NO3 =>
Cu(NH2)2 + 4 HNO3 = Cu(NO3)2 + 2 NH4NO3
Ag(s) + Ni(NO3)2(aq) = Ni(s) + AgNO3(aq) =>
2 Ag(s) + Ni(NO3)2(aq) = Ni(s) + 2 AgNO3(aq)
CH3CHBrCH2Br + KOH = CH3CCH + KBr + H2O =>
CH3CHBrCH2Br + 2 KOH = CH3CCH + 2 KBr + 2 H2O
K2SO4 + HI + As = KAsO3 + SO2 + KI + H2O =>
5 K2SO4 + 8 HI + 2 As = 2 KAsO3 + 5 SO2 + 8 KI + 4 H2O
NH4Cl + AgCH3COO = NH4Ag + ClCH3COO =>
NH4Cl + AgCH3COO = NH4Ag + ClCH3COO
NH3 + O2 = NO + H2O =>
4 NH3 + 5 O2 = 4 NO + 6 H2O
K2S + HCl = H2S + KCl =>
K2S + 2 HCl = H2S + 2 KCl
Sr + H2O = Sr(OH)2 + H2 =>
Sr + 2 H2O = Sr(OH)2 + H2
FeS2(s) + O2(g) = FeO3(s) + SO2(g) =>
2 FeS2(s) + 7 O2(g) = 2 FeO3(s) + 4 SO2(g)
MgHPO4 + NaPO3 = Mg(PO3)2 + Na2HPO4 =>
MgHPO4 + 2 NaPO3 = Mg(PO3)2 + Na2HPO4
C2H5CHO + O2 = C2H5COOH =>
2 C2H5CHO + O2 = 2 C2H5COOH
SiH4 + CCl4 = SiC + HCl =>
SiH4 + CCl4 = SiC + 4 HCl
BaCl2 + [NH4]2CO3 = BaCO3 + NH4Cl =>
BaCl2 + [NH4]2CO3 = BaCO3 + 2 NH4Cl
Y + R2 = Y2R2 =>
2 Y + R2 = Y2R2
CuCl2 + HBr = CuBr + HCl2 =>
CuCl2 + HBr = CuBr + HCl2
Fe(NH4)2(SO4)2*6H2O + H2SO4 + K2MnO4 = Fe(NH4)(SO4)2 + MnSO4 + (NH4)2SO4 + K2SO4 + H2O =>
4 Fe(NH4)2(SO4)2*6H2O + 4 H2SO4 + K2MnO4 = 4 Fe(NH4)(SO4)2 + MnSO4 + 2(NH4)2SO4 + K2SO4 + 28 H2O
Mg(OH)2(aq) + (NH4)3PO4(aq) = Mg3(PO4)2(s) + NH3(g) + H2O(l) =>
3 Mg(OH)2(aq) + 2(NH4)3PO4(aq) = Mg3(PO4)2(s) + 6 NH3(g) + 6 H2O(l)
CH2Cl2 = C + H2 + Cl2 =>
CH2Cl2 = C + H2 + Cl2
H{+} + [Cd(NH3)4]{2+} = Cd{2+} + NH4{+} =>
4 H{+} + [Cd(NH3)4]{2+} = Cd{2+} + 4 NH4{+}
NO2 + C3H8 = H2O + CO2 + NO =>
10 NO2 + C3H8 = 4 H2O + 3 CO2 + 10 NO
Fe3C + H2SO4 = Fe2(SO4)3 + CO2 + SO2 + H2O =>
2 Fe3C + 22 H2SO4 = 3 Fe2(SO4)3 + 2 CO2 + 13 SO2 + 22 H2O
KNO3SC(s) = K2O(s) + O(g) + N(g) + S(s) + C(s) =>
2 KNO3SC(s) = K2O(s) + 5 O(g) + 2 N(g) + 2 S(s) + 2 C(s)
Zn + NH4 + MnO2 = Mn2O3 + [Zn(NH3)]2 + H2O =>
2 Zn + 2 NH4 + 2 MnO2 = Mn2O3 + [Zn(NH3)]2 + H2O
AlCl3(s) = Al3(s) + Cl3(g) =>
3 AlCl3(s) = Al3(s) + 3 Cl3(g)
Na2CO3(aq) + Pb(NO3)2(aq) = Na2(NO3)2(aq) + PbCO3(s) =>
Na2CO3(aq) + Pb(NO3)2(aq) = Na2(NO3)2(aq) + PbCO3(s)
NaCN + K = KCN + Na =>
NaCN + K = KCN + Na
H2SO4(aq) = H(aq) + SO4(aq) =>
H2SO4(aq) = 2 H(aq) + SO4(aq)
ZnCl2 + KOH = K2[Zn(OH)4] + KCl =>
ZnCl2 + 4 KOH = K2[Zn(OH)4] + 2 KCl
K4Fe(CN)6 + KMnO4 + H2SO4 = KHSO4 + Fe2(SO4)3 + MnSO4 + HNO2 + CO2 + H2O =>
10 K4Fe(CN)6 + 98 KMnO4 + 251 H2SO4 = 138 KHSO4 + 5 Fe2(SO4)3 + 98 MnSO4 + 60 HNO2 + 60 CO2 + 152 H2O
HNO3 + As2S3 + H2O = H2SO4 + NO + H3AsO4 =>
28 HNO3 + 3 As2S3 + 4 H2O = 9 H2SO4 + 28 NO + 6 H3AsO4
Ti[OH]3 = TiO2 + H2O + H2 =>
2 Ti[OH]3 = 2 TiO2 + 2 H2O + H2
CN{-} + ClO{-} + OH{-} = N2 + CO2{2-} + Cl{-} + H2O =>
2 CN{-} + 3 ClO{-} + 2 OH{-} = N2 + 2 CO2{2-} + 3 Cl{-} + H2O
Zn + Sn2{+} = Zn2{+} + Sn =>
2 Zn + Sn2{+} = Zn2{+} + 2 Sn
Cu(NO3)2 + Na2CO3 = Na2(NO3)2 + CuCO3 =>
Cu(NO3)2 + Na2CO3 = Na2(NO3)2 + CuCO3
C27H13O5 + O2 = CO2 + H2O =>
4 C27H13O5 + 111 O2 = 108 CO2 + 26 H2O
Mg(OH)2(aq) + (NH4)3PO4(aq) = Mg3(PO4)2(s) + NH3(g) + H2O(l) =>
3 Mg(OH)2(aq) + 2(NH4)3PO4(aq) = Mg3(PO4)2(s) + 6 NH3(g) + 6 H2O(l)
CaO + KOH = Ca(OH)2 + K2O =>
CaO + 2 KOH = Ca(OH)2 + K2O
CO + H2O = CH + O =>
2 CO + H2O = 2 CH + 3 O
BaC2O4 + HCl = BaCl2 + H2C2O4 =>
BaC2O4 + 2 HCl = BaCl2 + H2C2O4
NH4Cl(aq) + Pb(NO3)2 = NH4NO3 + PbCl2 =>
2 NH4Cl(aq) + Pb(NO3)2 = 2 NH4NO3 + PbCl2
CH3NH2 + CH3COOH = C2H9COON =>
CH3NH2 + CH3COOH = C2H9COON
HNO3 + Cr = Cr(NO3)3 + N2 + H2O =>
36 HNO3 + 10 Cr = 10 Cr(NO3)3 + 3 N2 + 18 H2O
Ag2S + HNO3 = AgNO3 + NO2 + S + H2O =>
Ag2S + 4 HNO3 = 2 AgNO3 + 2 NO2 + S + 2 H2O
C6H12O6 = CO2C2H5OH =>
C6H12O6 = 2 CO2C2H5OH
AgClO4 + CaBr2 = AgBr2 + CaClO4 =>
AgClO4 + CaBr2 = AgBr2 + CaClO4
CCl3CHO + H2O = CCl3CH(OH)2 =>
CCl3CHO + H2O = CCl3CH(OH)2
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