english for Chemistry

              Chemical vocabulary acid  - There are several ways to  define an acid , but they include any chemical that gives off protons or H +  in water. Acids have a pH less than 7. They turn the pH indicator phenolphthalein colorless and turn  litmus paper red . acid anhydride  -  An acid anhydride  is an oxide that forms an acid when it is reacted with water. For example, when SO 3 -  is added to water, it becomes sulfuric acid, H 2 SO 4 . actual yield  - The  actual yield  is the amount of product you actually obtain from a chemical reaction, as in the amount you can measure or weigh as opposed to a calculated value. addition reaction  - An addition reaction is a  chemical reaction  in which atoms add to a carbon-carbon  multiple bond . alcohol  - An alcohol is any organic molecule that has an -OH group. aldehyde  - An aldehyde is any organic ...

          conversation between teacher and                               student about                "oxidation reduction reaction". Is a term that describes the change in the oxidation state (oxidation state) of atoms in a chemical reaction. This can be a simple redox process such as carbon oxidation that produces carbon dioxide, or carbon reduction by hydrogen to produce methane (CH4), or it can be a complex process such as the oxidation of sugar in the human body through a series of complicated electron transfers. The term redox comes from two concepts, namely reduction and oxidation. It can be easily explained as follows: Oxidation describes the release of electrons by a molecule, atom, or ion Reduction describes the addition of electrons by a molecule, atom, or ion. Although quite appropriate for use in various purposes, the above e...

           C ompare and contrast 1.Beryllium (Be) Atomic number: 4 Atoms mass: 9.01218 g / mol Electronegativity according to Pauling: 1.5 Melting point: 1280 ° C Boiling Point: 2970 ° C Radius Vanderwaals: unknown Ionic radius: unknown Isotopes: 1 The first ionisation energy: 899.2 kJ / mol Second ionisation energy: 1757 kJ / mol Potential standard: - 1.70 V Discovered by: Abbé René-Just Haüy in 1798 Nature of Chemistry and Physics of Beryllium Beryllium (beryllium) is a toxic, gray, strong, lightweight bivalent element, and is primarily used as a hardening agent in metal alloys. Beryllium is one of the lightest metals with the highest melting. These metals have excellent thermal conductivity, not magnetic, resistant to concentrated nitric acid, as well as at standard temperatures and pressures capable of resisting oxidation when exposed to air. The crust has a beryllium content of 2.6 ppm and 6 ppm in the soil. Berylli...