| Équations équilibrées la veille | Équations équilibrées le lendemain |
C3H4O4 + 8 NaOH = 3 CO2 + 6 H2O + 8 Na
K2Cr2O7 + HCl + Zn + NaCH3COO = Cr(CH3COO)2 + KCl + NaCl + ZnCl2 + H2O =>
K2Cr2O7 + 14 HCl + 4 Zn + 4 NaCH3COO = 2 Cr(CH3COO)2 + 2 KCl + 4 NaCl + 4 ZnCl2 + 7 H2O
Cr(OH)3 + H2O2 = Cr2(O2)3 + H2O =>
2 Cr(OH)3 + 3 H2O2 = Cr2(O2)3 + 6 H2O
Co(s) + H2O(g) = CoO(s) + H2 =>
Co(s) + H2O(g) = CoO(s) + H2
HAsO3 + H = AsH3 + H2O =>
HAsO3 + 8 H = AsH3 + 3 H2O
H2 + O2 = H2O =>
2 H2 + O2 = 2 H2O
Pb(CH3CoO)2 + HCl = PbCl2 + CH3CoOH =>
Pb(CH3CoO)2 + 2 HCl = PbCl2 + 2 CH3CoOH
KMnO4 + Zn + HCl = MnCl2 + ZnCl2 + KCl + H2O =>
2 KMnO4 + 5 Zn + 16 HCl = 2 MnCl2 + 5 ZnCl2 + 2 KCl + 8 H2O
enxofre + ozônio = dióxidodeenxofre =>
3 S + 2 O3 = 3 SO2
FeI3 + HClO4 + H2SO4 = HIO3 + HCl + Fe2(SO)3 =>
8 FeI3 + 9 HClO4 + 12 H2SO4 = 24 HIO3 + 9 HCl + 4 Fe2(SO)3
SO2 + Na[Al(OH)4] = NaHSO3 + Al(OH)3 =>
SO2 + Na[Al(OH)4] = NaHSO3 + Al(OH)3
S2O8{2-} + CH3CH2OH + H2O = SO4{2-} + CO2 + H{+} =>
6 S2O8{2-} + CH3CH2OH + 3 H2O = 12 SO4{2-} + 2 CO2 + 12 H{+}
C2H3Br3 + KOH = CH3COOH + KBr + H2O =>
C2H3Br3 + 3 KOH = CH3COOH + 3 KBr + H2O
Ag2 + Ba = AgBa =>
Ag2 + 2 Ba = 2 AgBa
K2SO4 + HCl = KCl + SO3 + H2O =>
K2SO4 + 2 HCl = 2 KCl + SO3 + H2O
CaCO3 + CH3COOH = (CH3COO)2Ca + H2O(l) + CO2 =>
CaCO3 + 2 CH3COOH = (CH3COO)2Ca + H2O(l) + CO2
HCl + NaOH = H2O + NaCl =>
HCl + NaOH = H2O + NaCl
BaCl2 + CuS = BaS + CuCl2 =>
BaCl2 + CuS = BaS + CuCl2
C8H18 + O2 = CO2 + H2O =>
2 C8H18 + 25 O2 = 16 CO2 + 18 H2O
NaHCO3 + CH3COOH = CH3COONa + H2O + CO2 =>
NaHCO3 + CH3COOH = CH3COONa + H2O + CO2
Al(s) + PbO(aq) = AlO(aq) + Pb(s) =>
Al(s) + PbO(aq) = AlO(aq) + Pb(s)
ZnSO4 + BaI2 = ZnI + Ba(SO4)2 =>
2 ZnSO4 + BaI2 = 2 ZnI + Ba(SO4)2
C5H8Br4 + Zn = ZnBr2 + C5H8 =>
C5H8Br4 + 2 Zn = 2 ZnBr2 + C5H8
Ca2N2 = Ca + N2 =>
Ca2N2 = 2 Ca + N2
H3P3O4 + RbOH = Rb3P3O4 + H2O =>
H3P3O4 + 3 RbOH = Rb3P3O4 + 3 H2O
NaHCO3 + HC2H3O2 = NaC2H5O2 + CO2 + H2O =>
4 NaHCO3 + 5 HC2H3O2 = 4 NaC2H5O2 + 6 CO2 + 2 H2O
Zn + H2SO4 = ZnSO4 + H2 =>
Zn + H2SO4 = ZnSO4 + H2
BaCl2 + Na2SO4 = NaCl + Ba2(SO4)2 =>
2 BaCl2 + 2 Na2SO4 = 4 NaCl + Ba2(SO4)2
HClZn + HCl = ZnCl2 + H2 =>
HClZn + HCl = ZnCl2 + H2
YI3 + Br = YBr + I =>
YI3 + Br = YBr + 3 I
Ca + HCl = CaCl2 + H2 =>
Ca + 2 HCl = CaCl2 + H2
AgNO3(aq) + NaOH(aq) = AgOH(s) + NaNO3 =>
AgNO3(aq) + NaOH(aq) = AgOH(s) + NaNO3
H3PO4 + SO4 = HSO4 + PO4 =>
H3PO4 + 3 SO4 = 3 HSO4 + PO4
CuBr2 + H2SO4 = CuSO4 + HBr =>
CuBr2 + H2SO4 = CuSO4 + 2 HBr
Y2(SO4)3(aq) + AgCH3COO(aq) = Ag2SO4(s) + Y(CH3COO)3(aq) =>
Y2(SO4)3(aq) + 6 AgCH3COO(aq) = 3 Ag2SO4(s) + 2 Y(CH3COO)3(aq)
K2Cr2O7 + H2O = K2Cr2O7H2O =>
K2Cr2O7 + H2O = K2Cr2O7H2O
(NH4)2SO4(s) = (NH4)2(aq) + SO4(aq) =>
(NH4)2SO4(s) = (NH4)2(aq) + SO4(aq)
NaCO3 + Na2S + SO2 = Na2S2O3 + CO2 =>
2 NaCO3 + 3 Na2S + 5 SO2 = 4 Na2S2O3 + 2 CO2
Fe(NO3)3 + Mg0 = Fe203 + Mg(NO3)2 =>
406 Fe(NO3)3 + 609 Mg0 = 2 Fe203 + 609 Mg(NO3)2
Mg(OH)2 + SO2 = (MgOH)2SO3 + H2O =>
2 Mg(OH)2 + SO2 = (MgOH)2SO3 + H2O
Ce(NO3)3 + C6H10O5 = CeO2 + CO2 + N2 + H2O =>
12 Ce(NO3)3 + 7 C6H10O5 = 12 CeO2 + 42 CO2 + 18 N2 + 35 H2O
ZnBr2 + NH4OH = NH4Br2 + ZnOH =>
ZnBr2 + NH4OH = NH4Br2 + ZnOH
KMnO4 + H2C2O4 + H2SO42H20 = K2SO4 + MnSO4 + H2O + CO2 =>
2 KMnO4 + 89 H2C2O4 + 3 H2SO42H20 = K2SO4 + 2 MnSO4 + 122 H2O + 178 CO2
K3(PO4) + (NH4)2(CO3) = K3(CO3) + (NH4)2PO4 =>
K3(PO4) + (NH4)2(CO3) = K3(CO3) + (NH4)2PO4
CH4O + HCl + C2H5NO2 = C7H4ClNO + H + O =>
5 CH4O + HCl + C2H5NO2 = C7H4ClNO + 22 H + 6 O
CuCl{+2} + Mg = Cu + MgCl{+2} =>
CuCl{+2} + Mg = Cu + MgCl{+2}
Fe(OH)2 + H2SeO3 = Fe(SeO3) + H2O =>
Fe(OH)2 + H2SeO3 = Fe(SeO3) + 2 H2O
FeCl2 + Sn = Fe + SnCl =>
FeCl2 + 2 Sn = Fe + 2 SnCl
PbSO4 + LiNO3 = Li2SO4 + PbN2O6 =>
PbSO4 + 2 LiNO3 = Li2SO4 + PbN2O6
Na + Na2O = Na3O =>
Na + Na2O = Na3O
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