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  2. Textbook - Wikipedia

    en.wikipedia.org/wiki/Textbook

    CK-12 Flexbooks are the open textbooks designed for United States K-12 courses. [49] CK-12 FlexBooks are designed to facilitate conformance to national and United States and individual state textbook standards. CK-12 FlexBooks are licensed under a Creative Commons BY-NC-SA license. CK-12 FlexBooks are free to use online and offer formats ...

  3. Wacker process - Wikipedia

    en.wikipedia.org/wiki/Wacker_process

    Pd + 2 CuCl 2 + 2 Cl − → [PdCl 4] 2− + 2 CuCl 2 CuCl + ⁠ 1 / 2 ⁠ O 2 + 2 HCl → 2 CuCl 2 + H 2 O. Only the alkene and oxygen are consumed. Without copper(II) chloride as an oxidizing agent, Pd(0) metal (resulting from beta-hydride elimination of Pd(II) in the final step) would precipitate, stopping Philips' reaction after one cycle.

  4. Stars and bars (combinatorics) - Wikipedia

    en.wikipedia.org/wiki/Stars_and_bars_(combinatorics)

    The solution to this particular problem is given by the binomial coefficient (+), which is the number of subsets of size k − 1 that can be formed from a set of size n + k − 1. If, for example, there are two balls and three bins, then the number of ways of placing the balls is ( 2 + 3 − 1 3 − 1 ) = ( 4 2 ) = 6 {\displaystyle {\tbinom {2 ...

  5. 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.

  6. List of Dewey Decimal classes - Wikipedia

    en.wikipedia.org/wiki/List_of_Dewey_Decimal_classes

    1 Class 000 – Computer science, ... 12 References. 13 External links. ... 810 American literature in English.

  7. Economic liberalisation in India - Wikipedia

    en.wikipedia.org/wiki/Economic_liberalisation_in...

    On 12 November 1991, based on an application from the Government of India, World Bank sanctioned a structural adjustment loan/credit that consisted of two components – an IBRD loan of $250 million to be paid over 20 years, and an IDA credit of SDR 183.8 million (equivalent to $250 million) with 35 years maturity, through India's ministry of ...

  8. Psalm 2 - Wikipedia

    en.wikipedia.org/wiki/Psalm_2

    Psalm 2 is the second psalm of the Book of Psalms, beginning in English in the King James Version: "Why do the heathen rage". In Latin, it is known as "Quare fremuerunt gentes" . [ 1 ] Psalm 2 does not identify its author with a superscription, but Acts 4:24–26 in the New Testament attributes it to David . [ 2 ]

  9. Newton's cradle - Wikipedia

    en.wikipedia.org/wiki/Newton's_cradle

    [citation needed] However, in early 1967, an English actor, Simon Prebble, coined the name "Newton's cradle" (now used generically) for the wooden version manufactured by his company, Scientific Demonstrations Ltd. [10] After some initial resistance from retailers, they were first sold by Harrods of London, thus creating the start of an ...