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Introduction to Chemistry Midterm - 3! 2부
샘플
이것은 샘플 연습 세트입니다. 보다 개인화된 시험 준비 경험을 위해:
또는
4. Atoms and Elements / Isotopes / 문제 5
문제 5

An element has two isotopes: one with a mass number of 35 and 75% abundance, and another with a mass number of 37 and 25% abundance. What is the average atomic mass of the element?