This problem is providing the mass, energy, initial temperature and specific heat of a sample of copper that is required to calculate the final temperature.
Thus, we recall the general heat equation:

Which has to be solved for the final temperature,
as follows:

Finally, we plug in the numbers to obtain:

However, this result is not given in the choices.
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A. Industrial pollution, the rest are considered positive
I think the answer is -2 which is answer A
Answer: it forms cyclopentadienyl radical by homolysis. Allylic 3° free radical is more stable due to resonance
Explanation: