Online Resources: e.g. www.KhanAcademy.org</li></li></ul><li>Structure of Course<br />Mon and Wed Class<br />Friday Peer Led Session<br />Peer Led sessions<br /><ul><li>Class may be in Science 212 or 213
Bring textbook, calculator and something to write with
Note: attendance to the sessions is a mandatory part of your grade</li></ul>Lecture on Content<br /><ul><li>Class in Science 212
Exams will be on M/W (see syllabus for dates)</li></li></ul><li>Friday’s Class May Be in a Different Room!<br />
CHEMISTRY<br />The Study of the Nature of Matter and Change<br />Matter – anything that has mass and takes up volume<br /> Examples of non-matter things? <br />Change refers to a change in properties – characteristics - of a substance. <br />
Physical Properties<br /><ul><li>Properties of a substance that depend on the nature of the substance itself.
Physical Change occurs when a substance changes its physical form: solid -> liquid. </li></li></ul><li>Chemical Properties<br /><ul><li>Properties that a substance shows as it reacts with another substance – acidic, basic, oxidant, etc.
A chemical change, a chemical reaction, converts one substance into one or more other substances.</li></li></ul><li>Extensive and Intensive Properties<br />Extensive Properties – depend on the amount of a substance<br />Mass<br />Volume<br />Intensive Properties – independent of the amount<br />Color<br />Melting Point<br />Density<br />
Classifications of Matter<br />Substance – Chemically the same throughout<br />Element – Cannot be broken down into simpler substances by chemical means<br />Compound – Chemical combination of two or more elements. All portions contain the same elements in the same proportions<br />Mixtures – Can be separated into two or more substances by physical means<br />Heterogeneous mixture – non-uniform mixture<br />Homogeneous mixture – uniform mixture<br />
Three States of Matter <br />Solid – has a fixed shape<br />Liquid – takes on the shape of the container, but fills the container only to the volume of the liquid; a liquid/gas interface will be formed. <br />Gas – takes on the shape of the container, and fills the container completely. <br />
Potential energy - energy that depends on position
All systems want to get to a “place” of lower energy or greater stability - the lower energy state</li></li></ul><li>Energy (2)<br /><ul><li>In chemical changes:</li></ul>ENERGY IS CONSERVED<br /><ul><li>Energy is neither created or destroyed as a result of a chemical or physical change. </li></li></ul><li>Questions and Exercises<br />1.8, 1.10, 1.11, 1.16, 1.27, 1.28, 1.30, 1.40<br />