Lec-02-Chap-01-2P

Lec-02-Chap-01-2P - Lecture 02 About Matter: Classifying...

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1 Lecture 02 About Matter: Classifying Matter: Substances and Mixtures 1.6 Elements and Compounds 1.7 Nanoscale Theories and Models 1.8 The Atomic Theory 1.9 The Chemical Elements 1.10 Chemical Symbols 1.11 Lecture 02, Knowledge and Skills • Know the difference between substances and mixtures • Know the difference between homogeneous and heterogeneous mixtures • Know the difference between elements and compounds • In many compounds, the elements occur in simple, fixed ratios • Work with different length scales • Know the symbols for the decimal system • Work with the scientific notation for small and large numbers • Use the kinetic theory to describe solids, liquids, and gases on the nanoscale • Know the basic statements of the atomic theory • Classify elements by type • Know what allotropes are • Know some allotropes, e.g., of carbon, oxygen, phosphorus, sulfur • Work with chemical symbols Mixtures Mixtures can be separated by physical techniques into various components Mechanical separation Distillation Fractional crystallization Evaporation Chromatography And other techniques Homogeneous and heterogeneous mixtures Pure substances cannot be separated by physical means Elements and Compounds Cannot be separated by physical means Compounds can be separated by chemical means
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This note was uploaded on 11/14/2010 for the course CHE 131 taught by Professor Kerber during the Spring '08 term at SUNY Stony Brook.

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Lec-02-Chap-01-2P - Lecture 02 About Matter: Classifying...

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