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AP Chemistry A Unit 4 Quiz

Single choice

Options

A.It is a redox reaction, because Cu(s) is oxidized and H+ (aq) is reduced.

B.It is a redox reaction, because Cu(s) is oxidized and the nitrogen atom in NO3 −(aq) is reduced.

C.It is a Brønsted-Lowry acid-base reaction, because HNO3(aq) is a strong acid.

D.It is a Brønsted-Lowry acid-base reaction, because the solution is neutral at the end.

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Step-by-Step Analysis

The question as provided is missing key context, which makes evaluating the options challenging. In a typical setup where CH3OH(l) is introduced into a previously evacuated vessel, there is no oxidizing or acidic/basic partner present to drive a reaction, so one would not expect a redox or acid–base change to occur simply from adding methanol to an empty container. With that caveat in mind, I’ll examine each option in turn and point out the logical gaps or assumptions required for each to be considered correct. Option 1: It is a redox reaction, because Cu(s) is oxidized and H+ (aq) is reduced. - Why this would need to be true: Copper metal would have to be present and oxidize to Cu2+, while H+ (from an acid) would be ......Login to view full explanation

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