CHEM 1010 week 7 notes
CHEM 1010 week 7 notes CHEM 1010
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This 3 page Class Notes was uploaded by Chase Bobier on Saturday March 12, 2016. The Class Notes belongs to CHEM 1010 at Middle Tennessee State University taught by Tammy J Melton in Fall 2015. Since its upload, it has received 9 views. For similar materials see Introductory General Chemistry I in Chemistry at Middle Tennessee State University.
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Date Created: 03/12/16
Chase Bobier CHEM 1010 notes week 7 Important terms Things you need to know Ionic and Covalent Compounds A compound is formed when two or more different elements combine chemically Bonds -Ionic bonds are the electrostatic force between ions of opposing charges. So anions bond with cations. Ionic compounds are always neutral, having no charge. (Example: Ns and Cl bond to form NaCl) -Covalent bonds are when atoms ‘share’ electrons between each other in pairs. Covalent compounds are usually formed between two nonmetals. Predicting the Formula of Ionic Compounds (Ionic compounds are a metal and a nonmetal) 1) Write the metal with it’s cationic charge 2) Write the nonmetal with it’s anionic charge 3) Combine the ions to form an electrically neutral formula. Sometimes you might need multiple of one or both of the atoms to make this happen. Nomenclature Ionic Compounds -ionic compounds have no prefixes -metal+nonmetal has the suffix of –ide -ionic compounds with high amounts of oxygen end in –ate Covalent Compounds (Two-element compounds) 1) First element is named first 2) Second Element is named second 3) Apply prefixes for multiple atoms Prefixes 2= di ( NO 2 Nitrogen dioxide) 3= tri (PCL 3 Phosporus trichlroide) 4= tetra (N 2 4 dinitrogen tetraoxide) 5= penta 6= hexa 7= hepta 8= octa 9= nona 10= deca Refer to page 84 of General, Organic, and Biochemistry for information on Lewis Dot Structures. Resonance is when there is more than one correct way to arrange the electrons in the structure Isomers occur when there is more than one way to correctly arrange the atom in a compound
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