Question

scrie ecuatiile chimice de mai jos si egaleaza-le a)CuSO4+KOH- b)Cu(NO3)2+H2S- c) CuSO4+Ba (OH)2- d)Cu(NO3)2+Ba(OH)2-

Answer 1

a)CuSO₄+2KOH⇒Cu(OH)₂+K₂SO₄ b)Cu(NO₃)₂+H₂S⇒CuS+2HNO₃ c) CuSO₄+Ba(OH)₂⇒BaSO₄+Cu(OH)₂d)Cu(NO₃)₂+Ba(OH)₂⇒Ba(NO₃)₂+Cu(OH)₂