Include such things as The difference between a position vector and a displacement vector The difference between a dot product and a cross product The difference between a scalar projection and a vector projection The difference between the way you calculate a dot product or cross product and what dot and cross products mean How dot products are used to find equations of planes in space How cross products are used to find areas of triangles and parallelograms in space R

Chemistry 116 Test 3 Study Guide Chapter 20 20.1: Oxidation States Oxidation-reduction reactions: chemical reactions in which the oxidation state of one or more substances change. Electrochemistry: the branch of chemistry that deals with relationships between electricity and chemical reactions. 20.2: Balancing Oxidation-Reduction Equations Half-reactions: a convenient way of separating oxidation and reduction reactions. Balancing Equations by the Method of Half- Reactions Balancing Equations for Reactions Occurring in Basic Solution 20.3: Voltaic Cells Voltaic or galvanic cells: devices in which electron transfe