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  2. 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.

  3. 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.

  4. Portal:Chemistry/Textbook - Wikipedia

    en.wikipedia.org/wiki/Portal:Chemistry/Textbook

    American Chemical Society - biochemistry - chemistry - computer-assisted drug design - computational chemistry - dependent variable - environmental chemistry - experiment - geochemistry - hypothesis - independent variable - inorganic chemistry - law - matter - medicinal chemistry - organic chemistry - pharmacology - pharmacognosy - physical ...

  5. Standard enthalpy of formation - Wikipedia

    en.wikipedia.org/wiki/Standard_enthalpy_of_formation

    For many substances, the formation reaction may be considered as the sum of a number of simpler reactions, either real or fictitious. The enthalpy of reaction can then be analyzed by applying Hess' law, which states that the sum of the enthalpy changes for a number of individual reaction steps equals the enthalpy change of the overall reaction.

  6. Open textbook - Wikipedia

    en.wikipedia.org/wiki/Open_textbook

    An open textbook is a textbook licensed under an open license, and made available online to be freely used by students, teachers and members of the public. Many open textbooks are distributed in either print, e-book, or audio formats that may be downloaded or purchased at little or no cost.

  7. CRC Handbook of Chemistry and Physics - Wikipedia

    en.wikipedia.org/wiki/CRC_Handbook_of_Chemistry...

    CRC Press is a leading publisher of engineering handbooks and references and textbooks across virtually all scientific disciplines. [3] 64th Edition of CRC Handbook of Chemistry and Physics with an American dollar bill for scale; weighs 6 pounds 5.0 ounces (2.86 kg)

  8. The Friendship Bench: Bringing talk therapy into underserved ...

    www.aol.com/friendship-bench-bringing-talk...

    A screening process refers more serious cases to professionals. For almost 20 years now, Dr. Chibanda has been using his medical training to help analyze and improve the program.

  9. Limiting reagent - Wikipedia

    en.wikipedia.org/wiki/Limiting_reagent

    Equal masses of iron (Fe) and sulfur (S) react to form iron sulfide (FeS), but because of its higher atomic weight, iron is the limiting reagent and once all the iron is consumed some sulfur remains unreacted

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