If they're different sizes and densities, you are able to separate the substances.
Answer:
inerpreting an author's words and using imagination to picture events
Explanation:
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Data:
Arsenic Molar Mass = 74,9216 ≈ 75 u (<span>atomic mass unit)</span>
Solving:
1 mole of arsenic → 75g ------------ 6,02*10²³ molecules
..................................X -------------- 1 molecule
6,02*10²³X = 75

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