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  2. AP Chemistry - Wikipedia

    en.wikipedia.org/wiki/AP_Chemistry

    The 2014 AP Chemistry exam was the first administration of a redesigned test as a result of a redesigning of the AP Chemistry course. The exam format is now different from the previous years, with 60 multiple choice questions (now with only four answer choices per question), 3 long free response questions, and 4 short free response questions.

  3. List of chemistry mnemonics - Wikipedia

    en.wikipedia.org/wiki/List_of_chemistry_mnemonics

    A mnemonic is a memory aid used to improve long-term memory and make the process of consolidation easier. Many chemistry aspects, rules, names of compounds, sequences of elements, their reactivity, etc., can be easily and efficiently memorized with the help of mnemonics.

  4. Khan Academy - Wikipedia

    en.wikipedia.org/wiki/Khan_Academy

    It also provides online courses for preparing for standardized tests, including the SAT, AP Chemistry, Praxis Core and MCAT [31] and released LSAT preparation lessons in 2018. [32] It also has a collaboration with independent chemists, which are mentioned in "Meet the chemistry professional".

  5. Ammonium perchlorate - Wikipedia

    en.wikipedia.org/wiki/Ammonium_perchlorate

    Ammonium perchlorate ("AP") is an inorganic compound with the formula NH 4 ClO 4.It is a colorless or white solid that is soluble in water. It is a powerful oxidizer.Combined with a fuel, it can be used as a rocket propellant called ammonium perchlorate composite propellant.

  6. List of style guides - Wikipedia

    en.wikipedia.org/wiki/List_of_style_guides

    Corporate publications typically follow either the AP style guide or the equally respected Chicago Manual of Style, often with entries that are additions or exceptions to the chosen style guide. A classic grammar style guide is The Elements of Style .

  7. Advanced Placement - Wikipedia

    en.wikipedia.org/wiki/Advanced_Placement

    One 2014 study of math and science AP courses showed that participation rates were 52.7% for AP Chemistry, 53.6% for AP Physics, 57.7% for AP Biology, and 77.4% for AP Calculus. [56] A 2017 study found similar participation rates (49.5% for AP Chemistry, 52.3% for AP Physics, 54.5% for Biology, and 68.9% for Calculus).

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