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Wiley-Interscience, 3rd edition, 1999, ISBN 0-471-16019-9. Wiley-Interscience, 4th edition, 2007, ISBN 0-471-69754-0. Wiley-Interscience, 5th edition, 2014, ISBN 9781118057483. Description: A comprehensive reference for the usage of protecting groups in organic synthesis. Importance: A reference publication.
English is a West Germanic language in the Indo-European language family, whose speakers, called Anglophones, originated in early medieval England on the island of Great Britain. [4][5][6] The namesake of the language is the Angles, one of the ancient Germanic peoples that migrated to Britain.
Children mix chemicals in test tubes as part of a hands-on chemistry education program in Samara, Russia. Chemistry education (or chemical education) is the study of teaching and learning chemistry. It is one subset of STEM education or discipline-based education research (DBER). [1] Topics in chemistry education include understanding how ...
Chemistry is the scientific study of the properties and behavior of matter. [1] It is a physical science within the natural sciences that studies the chemical elements that make up matter and compounds made of atoms, molecules and ions: their composition, structure, properties, behavior and the changes they undergo during reactions with other substances.
English classes in Moscow in 1964. English as a second or foreign language refers to the use of English by individuals whose native language is different, commonly among students learning to speak and write English. Variably known as English as a foreign language (EFL), English as a second language (ESL), English for speakers of other languages ...
Although English is not de jure an official language at the national level in the United States, most states and territories within the United States have English as an official language, and only Puerto Rico uses a language other than English as a primary working language. The United Kingdom, the United States, Australia, and New Zealand ...