Chem 1211 1st Edition Lecture 2 Outline of Last Lecture I Matter II Scientific Method III Scientific or Natural Laws Outline of Current Lecture I States of Matter II Definitions III Phase Changes IV Properties Current Lecture I II III IV States of Matter a Solid has a rigid shape b Liquid they take the shape of their container c Gas they completely fill the container that they are in d Plasma will not discuss much Definitions a Macroscopic can use senses to observe details b Microscopic details must be inferred Phase changes a Freezing liquid to solid b Melting solid to liquid c Condensing gas to liquid d Evaporating liquid to gas e Deposition gas to solid i e frost f Sublimation solid to gas i Sublimation evaporation and melting require heat Properties a Chemical properties chemical changes reaction molecules change into different molecules b Physical properties physical changes i e phase changes These notes represent a detailed interpretation of the professor s lecture GradeBuddy is best used as a supplement to your own notes not as a substitute c Extensive properties independent of mass i e temperature d Intensive properties need to have mass associated with it
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