Prepared by John H. Nelson and Kenneth C. Kemp, both of the University of Nevada. This manual contains 43 finely tuned experiments chosen to introduce students to basic lab techniques and to illustrate core chemical principles. You can also customize these labs through Catalyst, our custom database program. For more information, visit http://www.pearsoncustom.com/custom-library/catalyst In the Thirteenth Edition, all experiments were carefully edited for accuracy and safety.  Pre-labs and questions were revised and several experiments were added or changed. Two of the new experiments have been added to Chapter 11.