B. The remaining brown-black precipitate is now acidified with 6 M HCI, heated and then centrifuged. A colorless solution is decanted from the brown-black precipitate. The solution is made basic with 6 M NH3, thioacetamide is added and it is heated. No change is observed. Which cation IS NOT present in the unknown? Select all answer choices that apply. A. Cu2+ B. Cd2+ C. Sn4+ D. BI3+

B. The remaining brown-black precipitate is now acidified with 6 M HCI, heated and then centrifuged. A colorless solution is decanted from the brown-black precipitate. The solution is made basic with 6 M NH3, thioacetamide is added and it is heated. No change is observed. Which cation IS NOT present in the unknown? Select all answer choices that apply. A. Cu2+ B. Cd2+ C. Sn4+ D. BI3+

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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