Chapter 1: Keys to the Study of Chemistry
Chapter 1: Keys to the Study of Chemistry CH 121
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This 0 page Class Notes was uploaded by Amelia Notetaker on Tuesday December 1, 2015. The Class Notes belongs to CH 121 at University of Alabama - Huntsville taught by Pamela D Twigg (P) in Fall 2015. Since its upload, it has received 15 views. For similar materials see GENERAL CHEMISTRY I - 90514 - CH 121 - 02 in Chemistry at University of Alabama - Huntsville.
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Date Created: 12/01/15
Chapter 1 Lecture Notes 0 Chemistry 0 Study of matter Its properties Changes it undergoes 0 Energy associated with changes Elements vs compounds vs mixtures o Matter 0 Uniform o No Heterogeneous mixture Yes Homogenous mixture 0 Variable composition 0 No 0 Pure substance Yes Homogenous mixture solution 0 Can it be broken down to be simpler o No 0 Element Yes 0 Compound 0 Changes in matter 0 Physical Change in structure or state but not in composition 0 Chemical Results in a new substance Precision vs accuracy 0 Precision how close in a series 0 Accuracy how correct in a series 0 How far off from correct value 0 Random error values both higher and lower 0 Systematic error either all high or low 0 Problem with equipment 0 Temperature 0 273 C K o 95C 32 F o 59F32 C Dens y o D MassVolume 0 Intensive property 0 Temperature and pressure dependent
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