Chemistry · Redox Reactions
During a chemistry experiment, a student places a strip of zinc metal into a blue solution of copper(II) sulfate (CuSO4). After some time, the blue color of the solution fades and a reddish-brown deposit forms on the zinc strip. The student records that the solution loses its blue color, a reddish-brown solid is deposited, and the mass of the zinc strip decreases. Based on this experiment, which of the following conclusions can be drawn? (a) Zinc is oxidized and acts as the reducing agent. (b) Copper(II) ions are reduced to copper metal. (c) The reaction is an example of a displacement and redox reaction.
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- 1(b) and (c) only
- 2(a), (b), and (c)✓
- 3(a) and (c) only
- 4(a) and (b) only
Correct answer
(a), (b), and (c)
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