Which of the Following Statements Is True

question 49

Multiple Choice

Which of the following statements is true?

• A)Bond dissociation energies increase down a column of the periodic table.
• B)When DH° is positive,more energy is released in forming bonds than is needed to break bonds.
• C)When DH° is negative,more energy is needed to break bonds than is released in forming bonds.
• D)Bond dissociation energies decrease down a column of the periodic table.

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A neurotransmitter involved in the regulation of mood, appetite, and sleep, and implicated in depression when levels are insufficient.