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AQA Education, [1] trading as AQA (formerly the Assessment and Qualifications Alliance), is an awarding body in England, Wales and Northern Ireland. It compiles specifications and holds examinations in various subjects at GCSE, AS and A Level and offers vocational qualifications. AQA is a registered charity and independent of the government.
A specification often refers to a set of documented requirements to be satisfied by a material, design, product, or service. [1] A specification is often a type of technical standard. There are different types of technical or engineering specifications (specs), and the term is used differently in different technical contexts.
Standards are used in analytical chemistry. Here, a primary standard is typically a reagent which can be weighed easily, and which is so pure that its weight is truly representative of the number of moles of substance contained. Features of a primary standard include: High purity; Stability (low reactivity)
Cubane is a synthetic hydrocarbon compound with the formula C 8 H 8.It consists of eight carbon atoms arranged at the corners of a cube, with one hydrogen atom attached to each carbon atom.
The CRC Handbook of Chemistry and Physics is a comprehensive one-volume reference resource for science research. First published in 1914, it is currently (as of 2024 [update] ) in its 105th edition, published in 2024.
Chemistry Education Research and Practice is a quarterly peer-reviewed open access academic journal published by the Royal Society of Chemistry covering chemistry education. The editor-in-chief is Gwen Lawrie of the University of Queensland .
Upper secondary schools in Cuba are generically known as "preuniversitarios", but they also have other names depending on their specialization: IPVCE (Spanish abbreviation of Pre-university Institute of Exact Sciences), IPUEC (abbreviation of Institute Pre-university on the Country-Side), EVA (Arts Vocational School) and ESPA (sports) are ...
SMARTS is related to the SMILES line notation that is used to encode molecular structures and like SMILES was originally developed by David Weininger and colleagues at The Pomona College Medicinal Chemistry Project (MedChem). A SMARTS software search engine named GENIE was used as an additional user-specified search filter in the MedChem ...