chemical formula… resonance effects: Used to describe the situation when a chemical species donates or withdraws electrons through orbital overlap with neighboring pi bonds. substance. General Chemistry: Key Terms & Definitions 1. This is an organic chemistry glossary. Look up definitions of common and important organic chemistry terms. 23. These are four terms to get you going. Conductivity – Describes how easily a substance lets heat or electricity move through it. Periodic Table – A system for organizing the elements into columns and rows, so that elements with similar properties are in the same column. a compound composed of two elements. Compound. Alvin W. Orbaek is a research assistant at Rice University, Houston, Texas, where he is completing his PhD in chemistry. 25. Chemistry, basically, is the study of atoms, elements, compounds, and molecules. Science, Tech, Math Science Math Social Sciences Computer Science Animals & Nature Humanities History & Culture Visual Arts Literature oxidation state: Also known as the oxidation number, a measure for how many electrons an atom needs to become a neutral species. 2. Covalent bonds have directionality. thermodynamic control: Reactions that create products with the lowest energy and most stable product are said to be controlled by thermodynamics. any element or compound. electrons in the outermost shell. hybrid: Used to describe the mixing of molecular orbitals (s, p, d, f) such that they hybridize to form equivalent lone pairs and bonding pairs orbitals. Chemical reaction – Any change that occurs when substances interact to produce new substances with new properties; changes in the chemical and physical properties of the pure substances let you know that a chemical reaction has occurred; when vinegar and baking soda are combined, they react to produce frothy bubbles. Electron – A particle of an atom that surrounds the nucleus; has a charge of negative one. 7. combination of a metal and non metal. Alkalinity is a measure of how basic a substance is. ATTENTION: Please help us feed and educate children by uploading your old homework! Not all reactions create the most thermodynamic product; some are controlled by kinetics instead. It’s affected by conditions such as temperature, concentration, and the use of a catalyst. mixture. Calorimetry may be used to find the heat of reaction of two compounds or the heat of combustion of a compound, for example. Metal – Typically, an element that is solid at room temperature, shiny, malleable, ductile, and a good conductor; for example, aluminum, iron, and calcium. Mixture – matter than can be separated into parts using differences in physical properties; saltwater is a mixture of salt and water. In a chemical reaction if the oxidation number increases, the element is reduced. Chemical property – The ability of a substance to change or react and to form new substances when interacting with other substances, for example, zinc reacts with hydrochloric acid to produce hydrogen gas. 24. Tutor and Freelance Writer. A substance made up of atoms of two or more different elements…. 15. Atom – the smallest unit of an element that displays the same properties as the element, for example, hydrogen. 16. Electrons can be added, or removed to reached the neutral atom. Cite this article as: William Anderson (Schoolworkhelper Editorial Team), "General Chemistry: Key Terms & Definitions," in. Molecule – A type of particle that is made up of two or more atoms bonded together; carbon monoxide is an example of a molecule. carboxylic acid - A carboxylic acid is an organic molecule containing a -COOH group. Solubility – Describes how much of a substance dissolves in another substance. There are many words and terms that are specific to chemistry, in this case inorganic chemistry. Matter – Anything that has mass and occupies space (volume). Otherwise,... B Definitions - Background Radiation to Buffer. periodic table: A table of the elements that are ordered according to a successive increase in the atomic number. But what do they mean? 29. Your online site for school work help and homework help.