Réponse :
a) 2h2+02---2H20
b)Cu2+ + 2HO- --- CuO2H2
c)2Ag+CrO4--- Ag2CrO4
d) 2NH3+ 3/202 --- N2+ 3H20
e) Cu + 2Ag+ --- Cu2+ + 2Ag
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Réponse :
a) 2h2+02---2H20
b)Cu2+ + 2HO- --- CuO2H2
c)2Ag+CrO4--- Ag2CrO4
d) 2NH3+ 3/202 --- N2+ 3H20
e) Cu + 2Ag+ --- Cu2+ + 2Ag