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2. Quantities, Units and Symbols in Physical Chemistry

   en.wikipedia.org/wiki/Quantities,_Units_and...

   Quantities, Units and Symbols in Physical Chemistry, also known as the Green Book, is a compilation of terms and symbols widely used in the field of physical chemistry. It also includes a table of physical constants , tables listing the properties of elementary particles , chemical elements , and nuclides , and information about conversion ...

3. Central Board of Secondary Education - Wikipedia

   en.wikipedia.org/wiki/Central_Board_of_Secondary...

   The Central Board of Secondary Education (CBSE) will now conduct two separate examinations for Mathematics in class 10 board examination starting from the 2020 session. The current Mathematics exam is termed Mathematics (Standard), and an easier version of Mathematics has been introduced, called as Mathematics (Basic).

4. List of unsolved problems in chemistry - Wikipedia

   en.wikipedia.org/wiki/List_of_unsolved_problems...

   This article needs attention from an expert in chemistry. The specific problem is: Incomplete list. WikiProject Chemistry may be able to help recruit an expert.

5. Mole (unit) - Wikipedia

   en.wikipedia.org/wiki/Mole_(unit)

   It is an informal holiday in honor of the unit among chemists. The date is derived from the Avogadro number, which is approximately 6.022 × 10 23. It starts at 6:02 a.m. and ends at 6:02 p.m. Alternatively, some chemists celebrate June 2 (06/02), June 22 (6/22), or 6 February (06.02), a reference to the 6.02 or 6.022 part of the constant.

6. Buffer solution - Wikipedia

   en.wikipedia.org/wiki/Buffer_solution

   A buffer solution is a solution where the pH does not change significantly on dilution or if an acid or base is added at constant temperature. [1] Its pH changes very little when a small amount of strong acid or base is added to it. Buffer solutions are used as a means of keeping pH at a nearly constant value in a wide variety of chemical ...

7. Electricity - Wikipedia

   en.wikipedia.org/wiki/Electricity

   The unit of capacitance is the farad, named after Michael Faraday, and given the symbol F: one farad is the capacitance that develops a potential difference of one volt when it stores a charge of one coulomb. A capacitor connected to a voltage supply initially causes a current as it accumulates charge; this current will however decay in time as ...

8. Begging the question - Wikipedia

   en.wikipedia.org/wiki/Begging_the_question

   Opium induces sleep because it contains morphine-6-glucuronide, which inhibits the brain's receptors for pain, causing a pleasurable sensation that eventually induces sleep. A less obvious example from Fallacies and Pitfalls of Language: The Language Trap by S. Morris Engel: Free trade will be good for this country. The reason is patently clear.

9. Food loss and waste - Wikipedia

   en.wikipedia.org/wiki/Food_loss_and_waste

   [20]: 4, 6 Finally, the 2018/851/EU directive of 30 May 2018 (the revised Waste Framework Directive) [25] combined the two (after waste was redefined in 2008 by Article 3.1 of 2008/98/EC as "any substance or object which the holder discards or intends or is required to discard") [23] by defining food waste as "all food as defined in Article 2 ...