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Leviafan [203]
3 years ago
12

In 450 BCE, Greek philosopher Democritus first thought of the existence

Chemistry
1 answer:
trasher [3.6K]3 years ago
3 0

Answer:

A. Invisible

Explanation:

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A single atom of platinum has a mass of 3.25 x 10-22g. What is the mass of 6.0 x 1023 platinum atoms?
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