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algol13
3 years ago
12

How many gallons of propane in a 20-pound tank?

Chemistry
1 answer:
yanalaym [24]3 years ago
5 0
An empty 20 lb tank will hold about 4.7 gallons of propane. That is $18.47 at $3.93 per gallon
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3 years ago
Use the periodic table to determine the electron configuration for iodine (i). express your answer in condensed form.
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Iodine electron configuration is:

1S^2 2S^2 2P^6 3S^2 3P^6 4S^2 3d^10 4P^6 5S^2 4d^10  5P^5
when Krypton is the noble gas in the row above iodine in the periodic table,
we can change 1S^2  2S^2 2P^6 3S^2 3P^6 4S^2 3d^10 4P^6 by the symbol
[Kr] of Krypton.

So we can write the electron configuration of Iodine:
[Kr] 5S^2 4d^10 5P^5

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