Atoms and Reactions - Part 2, unit 1, module 1 0.0 / 5 ? ChemistryAtoms and reactionsASOCR Created by: Josie & VickiCreated on: 14-10-13 20:58 Acid A species that is a proton donor. 1 of 15 Base A species that is a proton acceptor. 2 of 15 Alkali A type of base that dissolves in water forming hydroxide ions. 3 of 15 Salt Any chemical compound formed from an acid when a H positive ion from the acid has been replaced by a metal ion or another positive ion. 4 of 15 Cation A positively charged ion 5 of 15 Anion A negatively charged ion. 6 of 15 Hydrated Refers to a crystalline compound containing water molecules. 7 of 15 Anhydrous Refers to a substance that contains water molecules. 8 of 15 Water of crystallisation Refers to water molecules that form an essential part of the crystalline structur of a compound. 9 of 15 Oxidation Number A measure of the number of electrons that an atom uses to bond with atoms of another element. 10 of 15 Oxidation Loss of electrons 11 of 15 Reduction Gain of electrons 12 of 15 Redox reaction A reaction in which both reduction and oxidation take place. 13 of 15 Reducing agent A reagant that reduces (adds electrons to)another species. 14 of 15 Oxidising Agent A reagant that oxidises (takes electrons from) another species. 15 of 15
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