Ch 12/13Supplemental InstructionIowa State UniversityLeader: LaurenCourse: Chem 167Instructor: HolmeDate: 12/03/091. What is the relationship between free energy and equilibrium?2. Describe the following graph:3. If ∆G is largely negative, then K is __________________________. If ∆G is largely positive, then K is __________________________.4. Consider the reaction 2 NO2(g) N2O4(g). a) Using Appendix E, calculate ∆G⁰ at 298 K. b) Calculate K. c) Are there more products or reactants in this equilibrium?Supplemental Instruction1060 Hixson-Lied Student Success Center v 294-6624 v www.si.iastate.edu5. Which is borate and which is boric acid? B(OH)4- ___________ B(OH)3 ____________6. What is the difference between uniform, galvanic, and crevice corrosion?7. What is ‘redox’?8. Oxidation Is a ___________ of electrons from a substance. Reduction Is a ___________ of electrons in a substance.9. a) What is a reducing agent? b) What is an oxidizing agent?10. Are all reaction redox reactions?11. Complete and balance the following half-reactions. Oxidation or reduction? a) Sn2+(aq) Sn4+(aq) b) TiO2(s) Ti2+(aq)12. Complete the following equation. Identify what is oxidized, what is reduced, the oxidizing agent, and the reducing agent. Cr2O72-(aq) + I-(aq) Cr3+(aq) +