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Recent Questions

In **Chemistry** / **Senior High School** | 2025-08-20

[Sagot para sa’yo] What is the mechanism and equation (reaction scheme) for the cross-coupling reaction between 4-bromobenzoic acid and phenyl boronic acid is run entirely in water with palladium as the catalyst? This is the description: The mechanism of the Suzuki-Miyaura cross-coupling reaction is outlined below. The ligands that coordinate to palladium throughout the reaction are omitted for clarity. An initiation step reduces the Pd(II) catalyst to Pd(0) species. In the first step of Suzuki cross-coupling, the electron rich Pd(0) catalyst breaks the carbon-bromine bond of the aryl bromide, providing an aryl Pd(II) intermediate. This first step is referred to as an oxidative addition because of the conversion of Pd(0) to Pd(II) (formally an oxidation or loss of electrons from the metal center). In the next step, the base (hydroxide in this case) displaces the bromide from palladium. This hydroxyl group, now attached to the palladium metal, can bind to the Lewis acidic aryl boronic acid, facilitating the transfer of the second aryl group to palladium. The process of transferring the aryl group from boron to palladium is referred to as transmetallation. In the final step, the two aryl groups form the key carbon-carbon bond and release the palladium catalyst. In this final step, Pd(II) regains two electrons, and the Pd(0) catalyst is regenerated. This final step is referred to as reductive elimination

In **English** / **Senior High School** | 2025-08-20

[Sagot para sa’yo] any reaction About anak movie?

In **Araling Panlipunan** / **Senior High School** | 2025-08-20

[Sagot para sa’yo] Nangangahulugang children of sun

In **Araling Panlipunan** / **Senior High School** | 2025-08-20

[Sagot para sa’yo] ang mga pangangailangan at kagustuhan ay may_______ sa suliranin ng kakapusan.

In **English** / **Senior High School** | 2025-08-20

[Sagot para sa’yo] settings a goal for myself

In **Araling Panlipunan** / **Junior High School** | 2025-08-20

[Sagot para sa’yo] ‎ Paliwanag: Sumasagisag ito sa kahalagahan ng agrikultura sa mga sinaunang kabihasnan. Ang pagtatanim at pag-aani ng palay o iba pang pananim ang nagbigay ng pagkain, nagpatatag sa pamayanan, at nagbigay-daan sa pag-usbong ng kalakalan. ‎ ‎ Paliwanag: Ito ay kumakatawan sa sistema ng pagsusulat ng sinaunang tao. Mahalaga ito sapagkat dito naitala ang kanilang batas, kasaysayan, kalakalan, at kultura. ‎ make it short

In **Filipino** / **Elementary School** | 2025-08-20

[Sagot para sa’yo] 7.Ang pag-iibigang Cupid at Psyche ay halimbawa ng anong akdang panitikan? *1 pointA. Maikling kwentoB. MitolohiyaC. NobelaD. Sanaysay

In **English** / **Elementary School** | 2025-08-20

[Sagot para sa’yo] ano ang poem ni Vic p yambao

In **Araling Panlipunan** / **Senior High School** | 2025-08-20

[Sagot para sa’yo] Paano pinag-uugnay ng kultura ang mga Austronesian? Magbigay ng mga konkretong halimbawa. Ano ang kahalagahan ng ugnayang kultural na ito sa kasalukuyang pagkakakilanlan at pag-unlad ng mga bansa sa rehiyon?

In **Physical Education** / **Senior High School** | 2025-08-20

[Sagot para sa’yo] it refers to the core exercise that targets the muscles in the lower back and abdominals, as well as the glutes and shoulders.