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4. A naturally occurring element X exists in three isotopic forms on the third planet of the Alpha Centauri star system: X-28 (27.979 amu, 32.21% abundance), X-29 (28.976 amu, 4.70% abundance), and X-30 (29.974 amu, 63.09% abundance). Calculate the atomic mass of X. Atomic Mass of element X: [ Select ]

4. A naturally occurring element X exists in three isotopic forms on the third planet of the Alpha Centauri star system: X-28 (27.979 amu, 32.21% abundance), X-29 (28.976 amu, 4.70% abundance), and X-30 (29.974 amu, 63.09% abundance). Calculate the atomic mass of X. Atomic Mass of element X: [ Select ]

Chemistry
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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Hi! Could I get this answered quickly with correct sig figs? Thanks!

Question #4: 4. A naturally occurring element X exists in three isotopic forms on the third planet of the Alpha Centauri star system: X-28 (27.979 amu, 32.21% abundance), X-29 (28.976 amu, 4.70% abundance), and X-30 (29.974 amu, 63.09% abundance). Calculate the atomic mass of X. Atomic Mass of element X: [ Select ] Question #5: 5. The chemical formula for iron (II) sulfide is: Formula: [ Select ] Question #6: 6. The complete combustion of hexene, C,H12, yields carbon dioxide and water: C6H12 + О2 — СО2 + H2O The smallest whole-number coefficient of oxygen in the balanced equation is: Coefficient of Oxygen: [ Select ]
Transcribed Image Text:Question #4: 4. A naturally occurring element X exists in three isotopic forms on the third planet of the Alpha Centauri star system: X-28 (27.979 amu, 32.21% abundance), X-29 (28.976 amu, 4.70% abundance), and X-30 (29.974 amu, 63.09% abundance). Calculate the atomic mass of X. Atomic Mass of element X: [ Select ] Question #5: 5. The chemical formula for iron (II) sulfide is: Formula: [ Select ] Question #6: 6. The complete combustion of hexene, C,H12, yields carbon dioxide and water: C6H12 + О2 — СО2 + H2O The smallest whole-number coefficient of oxygen in the balanced equation is: Coefficient of Oxygen: [ Select ]
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