Lesson: Chapter 12 — Electrochemistry

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Question 1

A zinc-copper cell and an iron-copper cell are compared. What do they have in common?

A Both need a battery B Copper dissolves in both C Copper is the negative terminal in both D Copper is the cathode in both

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Copper is the cathode in both. Copper is below both zinc and iron, so hydrogen forms on it in each cell.

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