Chem 1070 1st Edition Lecture 2 Outline of Last Lecture I. Laws and TheoriesII. Chemical WorldIII. Hypothesis and ObservationOutline of Current Lecture II. Conservation of MassIII.States of MatterIV. Mixtures v. CompoundsV. Physical and Chemical PropertiesCurrent LectureConservation of MassIn a chemical reaction matter is neither created nor destroyed. This forms the basis for chemical analysis and materials characterization. During physical and chemical changes the totalamount of matter remains constant.States of MatterMatter has 3 main states those include, Solid (s), Liquid (l), and Gas (g). Matter changes between these three states according to temperature, colder, Gas -> Solid. Warmer, Solid -> Gas.They each have different properties. Solids: maintain their shape and volume, liquids maintain volume but not shape, and gasses don’t maintain either shape or volume.Mixtures v. CompoundsMixtures and compounds often get confused. Mixtures are elements combined but not chemically bonded to each other. A compound is elements chemically bonded together. There are 2 different types of mixtures, homogeneous and heterogeneous. Homogeneous mixtures have a uniform composition throughout the whole mixture, while heterogeneous mixtures do not have a uniform distribution, instead they have sections or layers.Physical and Chemical PropertiesThese 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.These are just descriptions of things for example, physical properties are things you can see, change of start or conducting heat, etc. Chemical properties are things that change the composition of the compound or
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