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slavikrds [6]
3 years ago
5

One mole of copper has a different mass from one mole of mercury because

Chemistry
1 answer:
kari74 [83]3 years ago
3 0

Answer:

B)

an atom of mercury has a different mass than an atom of copper.

Explanation:

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An element has a mass of 207 and 125 neutrons in its nucleus. How many protons & electrons does it have & where are they
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