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2. United States National Chemistry Olympiad - Wikipedia

   en.wikipedia.org/wiki/United_States_National...

   The questions are loosely grouped into 10 sets of 6 items; each set corresponds to a different chemistry topic. Typically, the topics are, in order, descriptive chemistry/laboratory techniques, stoichiometry, gases/liquids/solids, thermodynamics, kinetics, equilibrium, electrochemistry, electronic structure/periodic trends, bonding theories ...

3. CRC Handbook of Chemistry and Physics - Wikipedia

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

   Mathematical Tables from Handbook of Chemistry and Physics was originally published as a supplement to the handbook up to the 9th edition (1952); afterwards, the 10th edition (1956) was published separately as CRC Standard Mathematical Tables. Earlier editions included sections such as "Antidotes of Poisons", "Rules for Naming Organic Compounds ...

4. Chegg - Wikipedia

   en.wikipedia.org/wiki/Chegg

   Purdue University prohibits students soliciting answers using Chegg's homework help: "While Chegg can be helpful to access textbooks and more practice problems, using this resource to find assignment answers is considered academic dishonesty because it is a form of copying and plagiarism.". [55]

5. Graduate Record Examinations - Wikipedia

   en.wikipedia.org/wiki/Graduate_Record_Examinations

   Changes to the GRE took effect on November 1, 2007, as ETS started to include new types of questions in the exam. The changes mostly centered on "fill in the blank" type answers for the mathematics section that requires the test-taker to fill in the blank directly, without being able to choose from a multiple choice list of answers.

6. Wikipedia - Wikipedia

   en.wikipedia.org/wiki/Wikipedia

   Several languages of Wikipedia also maintain a reference desk, where volunteers answer questions from the general public. According to a study by Pnina Shachaf in the Journal of Documentation , the quality of the Wikipedia reference desk is comparable to a standard library reference desk , with an accuracy of 55 percent.

7. Chemistry - Wikipedia

   en.wikipedia.org/wiki/Chemistry

   Chemistry is the scientific study of the properties and behavior of matter. [1] It is a physical science within the natural sciences that studies the chemical elements that make up matter and compounds made of atoms, molecules and ions: their composition, structure, properties, behavior and the changes they undergo during reactions with other substances.