Transcription of Chapter 1 Chemistry: The Central Science
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Chapter 1 Chemistry: The Central Science
Chapter 1 chemistry : The Central ScienceCHEM 101 Dr. Geoff SametzFall 2009 What IS chemistry ? Text: The study of matter and the changes that matter undergoes Focus: how matter interacts at the atomic/molecular levelWhy The Central Science ?Other scientific disciplines require an understanding of how matter behaves. Some examples:Physics: electronic devices require an understanding of materials called semiconductorsBiology Biochemistry OrganicChemistry (the study of carbon-containing compounds)Copyright McGraw-Hill The Scientific MethodCopyright McGraw-Hill Classification of Matter Matter is either classified as a substanceor a mixtureof substances. Substance Can be either anelement or a compound Has a definite (constant) composition and distinct properties Examples: sodium chloride, water, oxygenCopyright McGraw-Hill 20097 States of Matter Solid particles close together in orderly fashion little freedom of motion a solid sample does not conform to the shape of its container Liquid particles close together but not held rigidly in position pa
Why “The Central Science”? Other scientific disciplines require an understanding of how matter behaves. Some examples: Physics: electronic devices require an
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