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galben [10]
3 years ago
14

Please Help!!

Chemistry
2 answers:
drek231 [11]3 years ago
6 0

I believe that the best answer among the choices provided by the question is B. the density of freshwater remains constant as temperature decreases

nataly862011 [7]3 years ago
4 0
It’s b. The density of freshwater remains constant as temperature decreases.
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The decomposition of a compound at 400⁰C is first order with half-life of 1570 seconds. what fraction of an initial amount of th
kirill115 [55]

Answer: After 4710 seconds, 1/8 of the compound will be left

Explanation:

Using the formulae

Nt/No = (1/2)^t/t1/2

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Plugging in the values, we have  

Nt/No = (1/2)^(4710s/1570s)

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Therefore after 4710 seconds, 1/8 molecules of the compound will be left

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