CHEM 151 Study Guide Exam 4 - E xam 4 Study Guide For the last few weeks of the semester youll need to read the entire Chapter 4 and practice the

Exam 4 Study Guide For the last few weeks of the semester, you’ll need to read the entire Chapter 4 and practice the problems. This is a difficult chapter to conquer because of the math and symbol relationship to chemistry. Please read the Chapter early and leave yourself plenty of time to practice the problems. Week 13 The intermolecular forces that have been discussed over the past few weeks of the semester can be used to analyze trends in physical properties, but can also be used to predict chemical changes. These changes are represented by chemical reactions that show the proportions of the reacting and product chemicals. These proportions can be used as a recipe for a chemical reaction. During this week, precipitation reactions will be used to demonstrate the solubility of ionic compounds and the proportions of reactants and products. It is important to remember that the number of moles is the proportional unit, rather than the number of grams. It will be helpful to re-read chapter 3 sections 3.10 on writing and balancing Chemical Equations. Readings continue with Chapter 4 sections 4.4, 4.5, 4.6, 4.7, 4.8 Be able to: 1) Distinguish from a formula of a compound if they are an electrolyte or non-electrolyte 2)