Chemistry+Concepts

= =  **CP Chemistry:** ** Course Concepts and Grading Policy ** **Course objectives:** **Students will be able to comprehend the following:**
 * 1) The particles that make up substances can be compounded from smaller particles. The fact that compounds have definite composition leads us to Dalton’s model of the atom. Evidence from combining volumes and definite mass composition allows us to deduce formulas of compounds.
 * 2) Using Avogadro’s Hypothesis, we are able to determine the number of molecules in macroscopic samples by weighing them.
 * 3) We find that atoms have the property of charge and some internal structure. We use the Thomson model of the atom to account for our observations.
 * Navigate to the Atomic Theory Page for activities on this topic
 * 1) Chemical reactions involve the rearrangement of atoms in molecules to form new molecules. This arrangement of atoms results in a change on the chemical potential energy of the system. This invariably produces changes in thermal energy and results in energy transfers between system and surroundings.
 * 2) Equations representing chemical reactions relate numbers of particles to weighable amounts of these particles.
 * Converting from grams of one substance to grams of another substance in a balanced equation
 * The KHAN Academy has lots of video tutorials on this topic.
 * Determine the Percent Yield of a product: watch this youtube video for help
 * Limiting Reactants and Excess Reactants: watch this youtube video for help
 * Online Practice : LOTS of problems on this site from Widener University
 * 1) From an examination of the radiation emitted by hot metals and atomic gases, we conclude that atoms must have internal structure not explained by Thomson’s model.
 * 2) We extend the Bohr model to many-electron atoms, using it to provide a structural explanation for the organization of the periodic table and to examine models of covalent bonding in compounds.