PPT-Mercuric compounds

Byung Joon Lim 5142013 Dr Karen Wetterhahn 19481997 A professor of chemistry at Dartmuth college Studied the toxicity of heavy metals A few drops of dimethylmercury on the protective latex gloves. Mercurimetric. Determination of Blood or Urine Chloride. Principle:. *Chloride ions in a serum or urine sample are titrated with a standardized mercuric nitrate solution.. *. Mercuric ions combine with chloride ions to form a soluble HgCL2 . Mr. McMartin. Beta Science. Vocabulary. Compound: a pure substance composed of two or more elements that are chemically combined.. Compounds. Made of two or more elements that are chemically combined..  . 1) . SeF. 6. . . ________________________________________.  . 2) . TeO. 3 . . ________________________________________.  . 3) . H. 2. O. . . ________________________________________.  . 1. st. Year Chemistry. 1. Elements. Elements & Atoms. All substances are made up from tiny particles called atoms. When a substance is made up of only one type of atom it is called an element. The element iron is made up of iron atoms, the element hydrogen is made up of hydrogen atoms, the element sulphur is made up of sulphur atoms and so on.. CONTENTS. Introduction. Coordination . Compounds. Concept of Ligands. Werner’s. . Theory. Effective Atomic Number. Isomerism . in Coordination. . Compounds. INTRODUCTION. Coordination compounds are the inorganic salts formed by the combination of two or more simple compounds in stoichiometric ratio.. Another way of classifying chemical compounds… . Organic Compounds. In science, organic compounds contain . carbon. (. C. ), and usually . hydrogen. (. H. ). Sometimes other types of atoms are also attached, including: . Covalent Compounds. Formed between two non-metals. Valence electrons are shared between atoms. Binary Covalent Compounds. Contain just two different types of non-metal elements. Some Different Rules. 1. Nomenclature . of Polycyclic Aromatic Compounds. Polycyclic . aromatic compounds have two or more benzene rings fused together. 2. Naphthalene, anthracene and phenanthrene are obtained from . coal tar. a. calcium oxide . CaO. . b. potassium bromide . KBr. . c. zinc fluoride ZnF. 2. . d. gold (III) iodide AuI. 3. . e. aluminum chloride AlCl. 3. f. iron (II) sulfide . FeS. . g. silver nitride Ag. Provided by deutschdrang.com for individual and classroom use only. May not be reproduced for any other purposes. . German wo-compounds combine the word “wo” with a . preposition. , usually at the start of a . Chapter 5: Molecules and Compounds. Learning Goals. Write . chemical formulas.. Determine . the total number of each type of atom in a chemical formula.. Classify . elements as atomic or molecular.. Classify . complete. the . following. sentences. :. some. any. no. every. . . one. body. thing. where. Use . these. compounds to . complete. the sentences:. some. any. no. every. . . one. body. thing. where. I. onic compounds form between a metal and a nonmetal.. The metal forms a . cation. (+ ion) and the nonmetal forms an anion (-ion).. The . cation. is always named first and is the element name.. The anion is always named second – the root of the element name with an –ide ending.. Dr. . Ghufran. Mohammed Hussein. Non Essential . Trace Elements . Non Essential trace elements . are . fluoride. , . lead. , . aluminum. , . gold. , . mercury. , . lithium and . silver. The lack of any of these elements has not been shown to interrupt the life cycle or have a defined biochemical function in humans; thus they are generally considered nonessential. .