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AP Chemistry 1999 Free-Response Questions These materials were produced by Educational Testing Service (ETS), which develops and administers the examinations of the Advanced Placement Program for the College Board.
Going from a high energy state to a low energy state means that energy must be emitted. Note: The key idea is that the energy of the n = 6 state is higher (more excited) than the lower (less excited) n = 2 state. The argument that e− is farther away at the n = 6 level is not accepted. (ii)
Download free-response questions from past AP Chemistry exams, along with scoring guidelines, sample responses from exam takers, and scoring distributions.
AP Chemistry 1999 Sample Student Responses . These materials were produced by Educational Testing Service (ETS), which develops and administers the examinations of the Advanced Placement Program for the College Board.
1999 Answer the following questions regarding light and its interactions with molecules, atoms, and ions. (a) The longest wavelength of light with enough energy to break the Cl-Cl bond in Cl
concepts related to the Bohr atomic model. About 2 percent of the students choosing this question earned a perfect score on it. Surprisingly few students (perhaps less than 30 percent) were able to correctly convert wavelength to frequency in part (a) i, primarily because
Here you’ll find links to worked answers to FRQs from previous AP Chemistry exams. Every released FRQ from 1990 to 2023 has a worked answer. 2020 was a COVID interrupted year, and no formal exam questions were released into the public domain by the College Board, although AP teachers do have access to questions from 2020.
