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In physical chemistry, the Arrhenius equation is a formula for the temperature dependence of reaction rates.The equation was proposed by Svante Arrhenius in 1889, based on the work of Dutch chemist Jacobus Henricus van 't Hoff who had noted in 1884 that the Van 't Hoff equation for the temperature dependence of equilibrium constants suggests such a formula for the rates of both forward and ...
Since blue notes are alternate inflections, strictly speaking there can be no one blues scale, [8] but the scale most commonly called "the blues scale" comprises the minor pentatonic scale and an additional flat 5th scale degree: C E ♭ F G ♭ G B ♭ C. [9] [10] [11]
The S-level or scholarship level was a General Certificate of Education (GCE) public examination in England, Wales and Northern Ireland, taken by the most able A-level students. The 'S' level was typically used to support university entrance applications, though in practice it was directed almost exclusively to Oxbridge applications. Results ...
Neutral litmus paper is purple. [2] Wet litmus paper can also be used to test for water-soluble gases that affect acidity or basicity; the gas dissolves in the water and the resulting solution colors the litmus paper. For instance, ammonia gas, which is alkaline, turns red litmus paper blue. While all litmus paper acts as pH paper, the opposite ...
[1] [2] The solid formed is called the precipitate. [3] In case of an inorganic chemical reaction leading to precipitation, the chemical reagent causing the solid to form is called the precipitant. [4] The clear liquid remaining above the precipitated or the centrifuged solid phase is also called the supernate or supernatant.
In organic chemistry, regioselectivity is the preference of chemical bonding or breaking in one direction over all other possible directions. [1] [2] It can often apply to which of many possible positions a reagent will affect, such as which proton a strong base will abstract from an organic molecule, or where on a substituted benzene ring a further substituent will be added.
GCSEs and other Level 2 qualifications are generally required in order to pursue Level 3 qualifications, such as A-Levels or BTEC (Business and Technology Education Council) beyond the age of 16. The requirement of 5 or more 9–4 grades, including English, Mathematics and Science is often a requirement for post-16 qualifications in sixth form ...
"Blue Notes 2" is a sequel to "Blue Notes", which was released as a part of Meek's eleventh mixtape, DC4 (2016) and samples Snowy White's track, "Midnight Blues". On the guitar-heavy instrumental, Meek is seen "delivering rapid-fire bars" with Uzi on the bridge and the song's fourth and final verse. [ 1 ]