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Delocalizing the radical ion stabilizes the transition state structure. As a result, the energy of activation decreases, enhancing the rate of the overall reaction. According to the captodative effect, the rate of a reaction is the greatest when both the EDG and EWG are able to delocalize the radical ion in the transition state structure. [7]
This is a list of regions and provinces of the Philippines by Human Development Index (HDI) as of 2024. [1] The HDI is a statistic composite index of life expectancy, education (mean years of schooling completed and expected years of schooling upon entering the education system), and per capita income indicators, which is used to rank countries into four tiers of human development.
An electron donating group (EDG) or electron releasing group (ERG, Z in structural formulas) is an atom or functional group that donates some of its electron density into a conjugated π system via resonance (mesomerism) or inductive effects (or induction)—called +M or +I effects, respectively—thus making the π system more nucleophilic.
The Philippines is broadly divided into three traditional island groups: Luzon, the Visayas, and Mindanao. The Philippine flag's three stars are often taken to represent each of these geographical groupings. These island groups, however, have no specific administrative bodies, either elected or appointed, although many agencies and institutions ...
When the United States acquired the Philippines from Spain in 1898, the islands were divided into four gobiernos (governments), which were further subdivided into provinces and districts. The American administration initially inherited the Spanish divisions and placed them under military government.
Below is a full list of primary-level subdivisions of local government in the Philippines.As of June 11, 2024, there are 82 provinces ( province ), 33 highly urbanized cities ( HUC ), 5 independent component cities ( ICC ), and one independent municipality ( NCR municipality ).
You may be familiar with the Environmental Working Group (EWG) because they release a list of the most pesticide-filled produce every year called The Dirty Dozen. They also establish the produce ...
ISO 3166-2:PH is the entry for the Philippines in ISO 3166-2, part of the ISO 3166 standard published by the International Organization for Standardization (ISO), which defines codes for the names of the principal subdivisions (e.g., provinces or states) of all countries coded in ISO 3166-1.