Phát biểu nào sau đây là đúng khi nói về pin Galvani? add question
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Trong pin Galvani, phản ứng hóa học xảy ra giữa Cu, Fe2O3 và HCl. Bài thí nghiệm cho thấy sự tương tác giữa các kim loại và dung dịch muối, cũng như cách thiết lập pin điện hóa.
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