CHEM 1004 Lecture Notes Jan 27
CHEM 1004 Lecture Notes Jan 27 CHEM 1004
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This 2 page Class Notes was uploaded by Nadyah Hilmi on Saturday January 30, 2016. The Class Notes belongs to CHEM 1004 at George Washington University taught by Zysmillich in Spring 2014. Since its upload, it has received 49 views. For similar materials see Contemporary Science for Non-Science Majors in Chemistry at George Washington University.
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Date Created: 01/30/16
Chemistry for Non-Science Majors Wednesday, January 27 Lecture Notes SHORT REVIEW FROM LAST CLASS: Ionic Bonds= metal + nonmetal (lose or gain electrons) Covalent Bond= 2 or more nonmetals (share electrons) Polyatomic Molecules= contains more than 2 atoms Atoms always want 8 valence electrons (electrons on their outer shell) ORGANIC CHEMISTRY Chemistry of carbon containing atoms We know more than 20 million chemical compounds, over 95% are compounds of Cm All organic molecules contain Hydrogen (H) and Carbon (C) o Some also contain O, N, P, S (Oxygen, Nitrogen, Phosphorus, Sulfur) Known as heteroatoms Compounds that contain only H and C = hydrocarbons o Simplest kind of organic compound HYDROCARBONS 2 groups of hyrdrocarbons: o Saturated Hydrocarbons= single covalent bonds, just C + H o Unsaturated Hydrocarbons= form double or triple bonds Saturated Hydrocarbons: o known as alkanes o All have tetrahedral geometry As long as C is forming a single bond it forms a tetrahedal Simplest organic compound= CH (meth4ne) o 2 ndsimplest org compound= C H (2th6ne) rd o 3 simplest org compound= C H (pro3a8e) Carbon always bonds to 4 atoms in all molecules ISOMERS Molecules can have the same molecular formula, but different structural representation o Example: Butane C H (4ee10elow) They are both C H4 10,nd have the same chemical formulas, but different structural formulas= ISOMER The direction in which the structure is drawn isn’t important, instead, which carbons connect to each other are All carbons are identical There are many ways to display molecules (see example below) o All of these diagrams represent the same molecule propane C H 3 8,
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