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susu susu
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A week ago

What is the mass of exactly 1 million helium atoms? The atomic mass of helium is 4.00 u.



6.6 × 10−18 kg



6.0 × 10−17 kg



6.6 × 10−21 kg



6.0 × 10−20 kg

Textbook 
College Physics

College Physics


Edition: 5th
Author:
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tranle311tranle311
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A week ago
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this is exactly what I needed
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You make an excellent tutor!
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