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Chemistry Notes, Week 1

by: eshumaker1328

Chemistry Notes, Week 1 CHM 115 04

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About this Document

contains warm up information beginning of lecture -- history of chemistry
Principles of Chemistry I
Dr. Barrows
Class Notes
Principles, Of, Chemistry




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This 2 page Class Notes was uploaded by eshumaker1328 on Tuesday August 30, 2016. The Class Notes belongs to CHM 115 04 at Grand Valley State University taught by Dr. Barrows in Fall 2016. Since its upload, it has received 6 views. For similar materials see Principles of Chemistry I in Chemistry at Grand Valley State University.


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Date Created: 08/30/16
Tuesday, August 30, 2016 Chemistry History of Chemistry - Leucippus & Democritus atomos (divide it until you couldn’t divide it anymore) • - Aristotle & Plato • earth + wind + fire + water *{[ARISTOTLE & PLATO WON ARGUMENT BECAUSE THEY ARE MORE WELL-KNOWN]}* - Modern Scientific Thoughts • Observation i) something seen • Law i) energy/matter cannot be created or destroyed - example ii) something proven iii) summary of multiple observations • Theory iv) explanation for an observation • Fact (can they change?) v) can change vi) prevailing opinion on a topic Warm-up Notes - If one of the 3 listed below are not present, it is not significant • SCALAR • UNIT • ERROR 1 Tuesday, August 30, 2016 - counted or exact relationship presented=no error ~ infinite sig figs A. 12 dozen eggs - heavy water • not all hydrogen molecules are treated the same vii)can have +/- neutrons (1) ^ leads to behavioral changes etc. (a) H=1 proton (b) D(deuterium)=1 proton&1 neutron (c) T(Tritium)=1 proton& 2 neutrons - pure substances have constant compositions - ionic compounds do not have molecules B. NaCl (2) Na+ = metal cation & Cl- = non-metal anion —> ionic compound (3) don’t form a covalent bond ~ zero molecules 2


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