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General Paper: AS Level only CIE 8004: General Paper: AS Level only CIE 8024 Nepal Studies: AS Level only [1] CIE 8041: Divinity: AS Level only CIE 8053: Islamic Studies: AS Level only CIE 8058: Hinduism: AS Level only CIE 8274: Language and Literature in English (US) available in the US only under the BES pilot; AS Level only; available from ...
A linear tetradentate ligand has the four donor atoms in a line and each subsequent donor is connected by one of three bridges. Such a ligand bound to a metal in tetrahedral coordination can only connect in one way, though if the ligand is unsymmetrical then there are two chiral arrangements.
Chemical Abstracts Service Building B in August 2009. Columbus, Ohio. STN (Scientific & Technical Information Network) International is operated jointly [4] by CAS and FIZ Karlsruhe, and is intended primarily for information professionals, using a command language interface.
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 ...
In chemistry, a tincture is a solution that has ethanol as its solvent. In herbal medicine , alcoholic tinctures are made with various ethanol concentrations, which should be at least 20% alcohol for preservation purposes.
The following outline is provided as an overview of and topical guide to organic chemistry: Organic chemistry is the scientific study of the structure, properties, composition, reactions, and preparation (by synthesis or by other means) of carbon-based compounds, hydrocarbons, and their derivatives.
The general expression Qualitative Analysis [...] refers to analyses in which substances are identified or classified on the basis of their chemical or physical properties, such as chemical reactivity, solubility, molecular weight, melting point, radioactivity properties (emission, absorption), mass spectra, nuclear half-life, etc. Quantitative Analysis refers to analyses in which the amount ...
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 ...