Zinc is more reactive than copper. Hence, when copper metal strip was immersed into a beaker containing a 0.13M zinc (II) sulfate solution, no displacement reaction took place (left frame). On the contrary, when zinc metal strip was immersed into a beaker containing a 0.2M copper (II) sulfate solution, a single-displacement reaction occurred: Zn + CuSO4 -> Cu + ZnSO4 (right frame).

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TOP22299565

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達志影像

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RM

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