65 Explain, in terms of Zn atoms and Zn ions, why the mass of the Zn electrode decreases as the cell operates. [1] Answer: Part C Answer all questions in this part. 66. Base your answers to questions 66 through 69 on the information below and on your knowledge of chemistry....
83 Explain, in terms of protons and neutrons, why I-127 and I-131 are different isotopes of iodine. [1] Answer: 84. 84 Complete the equation in your answer booklet for the nuclear decay of I-108. [1] Answer: 85. 85 Determine the total time required for an 80.0-gram sample of...