CHEM 1314 Sample Exam #3 Part 1

In this clip I discuss predicting the products of four reactions (Question 1), and how to write the ionic and net ionic equation for one of the reactions (Q2 @7’ 51”). Question 3 (10’ 57”) asks for the electron configuration and the number of unpaired electrons for three elements. Using the same theme, an orbital diagram is focus of Q4 (18’ 58”). Question 5 (22’ 35”) is a multipart question beginning with the calculation of the frequency of an emission line in the hydrogen atom spectrum, then a calculation of the value of n that the electron falls to, a drawing of the energy level diagram for the hydrogen atom, and finally a calculation of the amount of energy required to ionize the electron. In Q6 (37’ 35”) effective nuclear charge is used to explain periodic trends.