MasteringChemistry: Chapter 2 Homework Adaptive Follow-Up https://session.masteringchemistry.com/myct/itemview?offset next&assignmentProblemID 79240100 CHE 170 Tro, 4e-J005 80563 Chapter 2Homework Adaptive Follow up For Practice 2.5 Enhanced with Feedback previous I Item 11 next quest For Practice 2.5 Enhanced with Feedback You may want to reference (Ua pages 66-69) Section 2.8 while completing this problem. Part A Magnesium has three naturally occurring isotopes with masses of 23.99 amu, 24.99 amu, and 25.98 amu and natural abundances of 78.99 10.00 and 11.01%, respectively. Calculate the atomic mass of magnesium. Express your answer to four significant figures and include the appropriate units. Atomic mass Value Units Submit My Answers Give Up Continu Chapter 4 Online HW Flashcards Quizlet