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  2. T-groups - Wikipedia

    en.wikipedia.org/wiki/T-groups

    For T-groups in mathematics, see T-group (mathematics). A T-group or training group (sometimes also referred to as sensitivity-training group, human relations training group or encounter group) is a form of group training where participants (typically between eight and fifteen people) learn about themselves (and about small group processes in ...

  3. Hospitality industry - Wikipedia

    en.wikipedia.org/wiki/Hospitality_industry

    The hotel industry in Vietnam is an important economic sector, contributing significantly to the country's GDP. [ 15 ] [ 16 ] [ 17 ] According to statistics from the Vietnam National Administration of Tourism , in 2022, Vietnam had a total of 32,313 accommodation establishments [ 18 ] [ 19 ] with 611,352 rooms, including 1,576 hotels with three ...

  4. Stille reaction - Wikipedia

    en.wikipedia.org/wiki/Stille_reaction

    The mechanism of the Stille reaction has been extensively studied. [11] [23] The catalytic cycle involves an oxidative addition of a halide or pseudohalide (2) to a palladium catalyst (1), transmetalation of 3 with an organotin reagent (4), and reductive elimination of 5 to yield the coupled product (7) and the regenerated palladium catalyst (1).

  5. Chemical Agent Detector Paper - Wikipedia

    en.wikipedia.org/wiki/Chemical_Agent_Detector_Paper

    Chemical Agent Detector Paper. Chemical Agent Detector Paper is a type of paper used for detecting the presence of chemical agents, including nerve agents, mustard agents, and blister agents. The paper typically change color in the presence of a chemical agent. The U.S. Military and first responders typically use the paper.

  6. Staudinger reaction - Wikipedia

    en.wikipedia.org/wiki/Staudinger_reaction

    The Staudinger reaction is a chemical reaction of an organic azide with a phosphine or phosphite produces an iminophosphorane. [1][2] The reaction was discovered by and named after Hermann Staudinger. [3] The reaction follows this stoichiometry: R 3 P + R'N 3 → R 3 P=NR' + N 2.

  7. Knoevenagel condensation - Wikipedia

    en.wikipedia.org/wiki/Knoevenagel_condensation

    A Knoevenagel condensation is a nucleophilic addition of an active hydrogen compound to a carbonyl group followed by a dehydration reaction in which a molecule of water is eliminated (hence condensation). The product is often an α,β-unsaturated ketone (a conjugated enone). General Knoevenagel layout. In this reaction the carbonyl group is an ...

  8. Schmidt reaction - Wikipedia

    en.wikipedia.org/wiki/Schmidt_reaction

    RXNO:0000170. In organic chemistry, the Schmidt reaction is an organic reaction in which an azide reacts with a carbonyl derivative, usually an aldehyde, ketone, or carboxylic acid, under acidic conditions to give an amine or amide, with expulsion of nitrogen. [1][2][3] It is named after Karl Friedrich Schmidt (1887–1971), who first reported ...

  9. Blue bottle experiment - Wikipedia

    en.wikipedia.org/wiki/Blue_bottle_experiment

    Blue bottle reaction video. The blue bottle experiment is a color-changing redox chemical reaction. An aqueous solution containing glucose, sodium hydroxide, methylene blue is prepared in a closed bottle containing some air. Upon standing, it spontaneously turns from blue to colorless due to reduction of methylene blue by the alkaline glucose ...