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The Cambridge International General Certificate of Education: Advanced Level (formally also known as the University of Cambridge International General Certificate of Education: Advanced Level ; informally also known as International (GCE) A-Level(s), Cambridge (GCE) A-Level(s) or Cambridge International (GCE) AS and A Level) [1] [2] is an international school-leaving qualification for ...
Edexcel was formed in 1996 by the merger of two bodies, the BTEC (Business & Technology Education Council) and ULEAC (University of London Examinations and Assessment Council). [1] In 2003, the Edexcel Foundation (the charity that managed the board) formed a partnership with Pearson plc to set up a new company called London Qualifications Ltd ...
In foundation-tier papers, pupils can obtain a maximum grade of a C, while in a higher-tier paper they can achieve a minimum grade of a D. Higher-tier candidates who miss the D grade by a small margin are awarded an E. Otherwise the grade below E in these papers is U. In untiered papers pupils can achieve any grade in the scheme.
Ion-exchange resin beads. An ion-exchange resin or ion-exchange polymer is a resin or polymer that acts as a medium for ion exchange, that is also known as an ionex. [1] It is an insoluble matrix (or support structure) normally in the form of small (0.25–1.43 mm radius) microbeads, usually white or yellowish, fabricated from an organic polymer substrate.
The Higher School Certificate is an academic qualification in Mauritius awarded upon the completion of Grade 13, the final stage of secondary school.The qualification is awarded upon earning passing marks on the A-level exams administered by the Mauritius Examinations Syndicate, in conjunction with the University of Cambridge Local Examinations Syndicate of the Cambridge International ...
This is an accepted version of this page This is the latest accepted revision, reviewed on 13 January 2025. Educational assessment For other uses, see Exam (disambiguation) and Examination (disambiguation). Cambodian students taking an exam in order to apply for the Don Bosco Technical School of Sihanoukville in 2008 American students in a computer fundamentals class taking an online test in ...
Molar concentration or molarity is most commonly expressed in units of moles of solute per litre of solution. [1] For use in broader applications, it is defined as amount of substance of solute per unit volume of solution, or per unit volume available to the species, represented by lowercase : [2]
An illustrative example is the effect of catalysts to speed the decomposition of hydrogen peroxide into water and oxygen: . 2 H 2 O 2 → 2 H 2 O + O 2. This reaction proceeds because the reaction products are more stable than the starting compound, but this decomposition is so slow that hydrogen peroxide solutions are commercially available.