1. The problem statement, all variables and given/known data A plastic rod that has been charged to -15.0 nC touches a metal sphere. Afterward, the rod's charge is -10nC. Part C - How many charged particles were transferred? 2. Relevant equations Don't know any e=1.6 * 10^-19 3. The attempt at a solution This chapter greatly confuses me...This should be really simple and I am just being stupid... There is a difference of 5nC between the original charge and the current charge. However, besides knowing that I do not know what to do. There are no equations in this part of the chapter.