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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. Family of choice - Wikipedia

    en.wikipedia.org/wiki/Family_of_choice

    A family of choice refers to a group of people bound by intentional and chosen relationships with a focus on mutual love, trust, and commitment. This is in contrast to a " family of origin ", the biological or adoptive family into which a person is born or raised.

  4. Advanced Placement exams - Wikipedia

    en.wikipedia.org/wiki/Advanced_Placement_exams

    Advanced Placement (AP) examinations are exams offered in United States by the College Board and are taken each May by students. The tests are the culmination of year-long Advanced Placement (AP) courses, which are typically offered at the high school level. AP exams (with few exceptions [1]) have a multiple-choice section and a free-response ...

  5. Family of origin - Wikipedia

    en.wikipedia.org/wiki/Family_of_origin

    Family of origin refers to the early social group a person belongs to in childhood, which is often a person's biological family or an adoptive family. [1] The family of origin is often referred to in contrast to the family of choice independently in adulthood (such as marriage , living independently, etc).

  6. 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.

  7. Group 8 element - Wikipedia

    en.wikipedia.org/wiki/Group_8_element

    Group 8 is a group (column) of chemical elements in the periodic table.It consists of iron (Fe), ruthenium (Ru), osmium (Os) and hassium (Hs). [1] " Group 8" is the modern standard designation for this group, adopted by the IUPAC in 1990. [1]

  8. Chemical species - Wikipedia

    en.wikipedia.org/wiki/Chemical_species

    An example is ozone, which has the chemical formula O 3. [6] Ionic species: Atoms or molecules that have gained or lost electrons, resulting in a net electrical charge that can be either positively (cation) or negatively charged (anion). Species with an overall positive charge will be a cationic species.

  9. Outline of chemistry - Wikipedia

    en.wikipedia.org/wiki/Outline_of_chemistry

    The following outline acts as an overview of and topical guide to chemistry: . Chemistry is the science of atomic matter (matter that is composed of chemical elements), especially its chemical reactions, but also including its properties, structure, composition, behavior, and changes as they relate to the chemical reactions.

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