Ionic compounds are formed when a metal and a non-metal join together. When sodium metal is dropped into a gas jar of chlorine gas the elements react violently to form a new compound called sodium chloride joined by ionic bonds. To understand how this process works‚ we must grasp an understanding of what an ion is and what an ionic bond is. An ion is an atom that has an electric charge and is created when an atom (or a group) gain or loses electrons. (It has an electric charge due to the imbalance
Free Atom Chemical bond Ion
2012 Spectrophotometric Determination of Iron in Aqueous Solutions as a Complex of 1‚10-Phenanthroline Introduction From the previous classical method of concentration determination of an unknown sample‚ this experiment now deals with the instrumental one. Unknown concentrations of iron in solutions were determined by measuring their corresponding absorbances through spectrophotometry. A spectrophotometer measures the amount of light that a solution absorbs. This is done by bombarding the sample
Premium Spectroscopy Chemistry Absorbance
Conclusion: The purpose of this experiment is to work with aqueous solutions of ionic substances. Aqueous solutions are those solutions in which water is the solvent. When ionic substances are dissolved in water‚ the ions separate and become surrounded by water molecules. The focus of this experiment is on precipitates. The goal of this experiment is to study the nature of ionic reactions‚ write balanced equations‚ and to write net ionic equations for precipitation reactions. Based on the solubility
Premium Sodium chloride Solubility Chemistry
Grade 10 Science –Chemistry Ionic Compounds Science Perspectives 10 - Section 5.6 Pages 192-195 Compound • A Pure Substance composed of two or more elements in a FIXED RATIO Ionic Compound • A compound made up of one or more positive metal ions (cations) and one or more negative non-metal ions (anions) Ionic Bond • The simultaneous strong attraction of positive and negative ions in an ionic compound. As noted‚ ionic bonding occurs between metals and non-metals. Yet‚ “why
Premium Atom Ion Ionic bond
When ionic solids dissolve‚ they divide to give their positive and negative ions that make up the solids. These ions become hydrates and have the same relative proportions when in solution and when solid. The more the solid dissolves‚ the more the ion’s concentration increases. This increase and build-up allows for the reverse reaction to occur. In this phase of the reaction the ions crystallise out in order for the reaction to have a greater chance of occurring. Eventually the rate of
Premium Solubility
IN AQUEOUS SOLUTION B Y RESULTS AND DISCUSSION Considered as moderately weak oxidizing agent‚ Iodine was used for the determination of strong reductants. Standard iodine solutions were found to have smaller electrode potentials as compared with the other oxidants‚ gaining them the advantage of imparting a degree of selectivity essential in the determination of strong reducing agents amid the presence of weak agents. Although regular re-standardization was essential for Iodine solution due
Premium Iodine Oxidizing agent
MECHANISM OF AQUEOUS HUMOR FORMATION There is a constant flow of aqueous humor through the anterior segment of the eye. The aqueous is formed by the ciliary process and flows from the posterior chamber to anterior chamber through the pupil and exits the eye at the angle. The secretion of aqueous humor generates the intraocular pressure required for an optically efficient globe. The flow of aqueous provides nutrition for the avascular ocular tissues that it bathes‚ the posterior surface of the
Premium Eye Carbon dioxide
Laboratory‚ IN Technology Pte Ltd 10‚ Haig Lane‚ Singapore 438814 Email: intech01@singnet.com.sg Dr. Martin Orr Clinical Director‚ Information Services‚ Waitemata District Hospital‚ Email: Martin.Orr@waitematadhb.govt.nz ABSTRACT This paper explores the use of systems thinking in action research projects. It will describe two ‘real’ action research projects‚ where soft systems methodology was used by managers who introduced change in their own organizations. It elaborates how applying this methodology
Premium Systems thinking Soft systems methodology Systems theory
In To Kill A Mocking Bird‚ Harper Lee portrays racial bias from low class whites to maintain their position above blacks in the social hierarchy. After Tom Robinson is accused of raping Mayella Ewell‚ a mob of white men goes to the Maycomb jail to lynch Tom Robinson. “ You know what we want‚’ Another man said. ‘Get aside from the door Mr. Finch.” Tom Robinson has been accused of rape‚ but he has not been put on trail‚ but these men decide to take it into their own hands and kill him just because
Premium Sociology To Kill a Mockingbird Social class
Indian Higher Education Reform: From Half-Baked Socialism to Half-Baked Capitalism Devesh Kapur and Pratap Bhanu Mehta CID Working Paper No. 108 September 2004 © Copyright 2004 Devesh Kapur‚ Pratap Bhanu Mehta and the President and Fellows of Harvard College Working Papers Center for International Development at Harvard University INDIAN HIGHER EDUCATION REFORM: FROM HALF-BAKED SOCIALISM TO HALF-BAKED CAPITALISM Devesh Kapur Frederick Danziger Associate Professor of Government Harvard University
Premium Higher education