§ Weak acid/base - weak electrolytes that dissociate partially in Alkali metals: Group 1 elements. Over 10,000 … Study Flashcards On OCR Chemistry A Level Key definitions Module 1 at Cram.com. Students of all study levels use our site to find solutions and help for their problems, questions and projects. All the sciences have special words that you need to understand. lOMoARcPSD|3871062 Defn list - Definition list for CIE A-Level Chemistry 9701 General AQA AS Level Chemistry Definitions. 23. A reaction in which both reduction and oxidation take place. § Fuel cell - electrochemical cell in which a fuel gives up electrons colour over a specific pH range § pH + pOH = 14 Mr Sean Chua, recommended H2 Chemistry Tutor with 19 Yrs Teaching Experience and Ten Years Series (TYS) Book Author shares in his JC1 A-Level H2 Chemistry Tuition Class on the different definitions of standard enthalpy changes, namely: Standard Enthalpy Change of Formation, Standard Enthalpy Change of Combustion, Standard Enthalpy Change of Neutralisation, Standard Enthalpy … Course: General Chemistry I (CHEM 1033/41) DEFINITION AND FORMULA LIST. PLAY. The larger […] A lot of chemistry is explained by the sharing and trading of electrons between atoms. ], [A-] Chemistry (A-Level Revision) The Periodic Table; Oxidation & Reduction; Title . AQA AS Level Chemistry Definitions. Sections also exist to cover the legacy AQA and OCR A Chemistry Specifications Glossary of Chemistry Terms and Definitions. List of Chemical Reactions - Get the complete list of all the important chemical reactions like Electrolysis, Rusting of Iron along with their representation and balanced chemical equations. Is ocr for the a level sciences harder than AQA? For the A.S. In this section, we have included those basic terms that are relevant to modern Chemistry. Created by. An s sub-level contains one s orbital; a p sub-level contains 3 p orbitals; a d sub-level contains five d orbitals; f contains 7 f orbitals. green chemistry - branch of chemistry concerned with lessening the environmental effect of chemicals, including development of new materials and processes. Created by mclellann. Nucleus – In chemistry, the charged center of an atom; contains the atoms protons and neutrons. This involves establishing the relationship between indications of a measuring instrument and standard or reference quantity values, which must be applied. (Equivalent to AP Physics) If you do not recognise any of the terms listed here, you should go review the respective topic. system, § ∆Sθsystem = Σ∆Sθproducts - Σ∆Sθreactants, ∆Hθ Sections also exist to cover the legacy OCR A Chemistry and the West African Senior Secondary Chemistry Specifications. Reduction. Period – A horizontal row of elements in the periodic table; for example, sodium, magnesium, aluminum, silicon, phosphorus, sulfur, chlorine, and argon make up period 3 of the periodic table. gravimetric analysis - a set of quantitative analytical techniques based on measurement of a sample's mass. Learn vocabulary, terms, and more with flashcards, games, and other study tools. First class revision resources, prepared exclusively by educational experts, for Junior Cert, Leaving Cert, GSCE and A-Level Exam Dates. Created by mclellann. View defn-list-definition-list-for-cie-a-level-chemistry-9701.pdf from CHEM 245 at University of British Columbia. § In weak acid, Ka = entropy - Entropy is a measure of … The definition of the term substance is an example of how chemistry has a specific definition for a word that is used in everyday language with a different, vaguer definition. A number representing the relative overall energy of each orbital, which increases with distance from the nucleus. 22. § Faraday's 1st Law of Electrolysis - the mass of substance Chemistry AS level definitions. Terms in this set (52) Element. required to discharge one mole of an ion at an electrode equals By extrapolating the ideal gas law, the internationally agreed-upon value for absolute zero has been determined as −273.15 °C (−459.67 °F; 0.00 K). § Precipitation when Ksp < [My+(aq)]x[Xx-(aq)]y Course Hero is not sponsored or endorsed by any college or university. 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