(A) Artificial radioactivity ()
(B) heating (X)
(C) Electroplating (X)
(D) Chemical reaction (X)
Answers: Copper can be converted into gold by Artificial radioactivity.
(A) Artificial radioactivity ()
(B) heating (X)
(C) Electroplating (X)
(D) Chemical reaction (X)
Answers: Copper can be converted into gold by Artificial radioactivity.
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