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Yuki888 [10]
3 years ago
11

The value listed for the average atomic mass of bromine is 79.909 u. it consists of two isotopes, one with a mass of 78.9183 u a

nd one with a mass of 80.9163 u. what is the percent, by weight, of the most abundant isotope in naturally occurring bromine?
Chemistry
1 answer:
katovenus [111]3 years ago
6 0
49.375% since 78.9183 is the most abundant
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Answer:

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Explanation:

'Ordered Arrangement' basically means that it is a solid at room temperature. Room temperature is approximately 15-20C so we are looking for melting and boiling points that are above room temperature so it hasn't/can't melt or boil at room temperature and would therefore be solid. Option C is the only one where both points are temperatures above room temperature therefore option C is the only one where the substance would be in an 'ordered arrangement' at room temperature.

Hope this helped!

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Explanation:

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