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Scrie ecuatiile chimice si egaleaza-le:
a) CuSO4+ KOH =
b. Cu(NO3)2 + H2S=
c. CuSO4 + Ba(OH)2=
d. Cu(No3)2 + Ba(OH)2=


Răspuns :

2KOH+CuSO₄=Cu(OH)₂+K₂SO₄
Cu(NO₃)₂+H₂S=CuS+2HNO₃
CuSO₄+Ba(OH)₂=BaSO₄+Cu(OH)₂
Cu(NO₃)₂+Ba(OH)₂=Ba(NO₃)₂+Cu(OH)₂