Chemistry · Displacement Reactions and Redox Process
A zinc strip is placed in an aqueous solution of copper(II) nitrate. Over time, a reddish-brown coating forms on the zinc strip, and the blue color of the solution disappears. Which explanation accurately describes this chemical phenomenon?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1The blue color disappears due to rapid evaporation of water, leaving dry copper behind
- 2Only copper metal reacts with water, while the zinc strip remains completely chemically inert
- 3The blue color fades because zinc ions form a coordination complex with solvent water molecules
- 4Cu2+ ions in solution are reduced to reddish copper metal deposited on the strip, while metallic zinc is oxidized to colorless Zn2+ ions✓
Correct answer
Cu2+ ions in solution are reduced to reddish copper metal deposited on the strip, while metallic zinc is oxidized to colorless Zn2+ ions
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