Answer:
‘many parts’
Explanation:
I remember learning this in last year AP Chemistry
Answer:
- <u>b. three half-lives</u>
Explanation:
The number of half-lives elapsed, n, is calculated dividing the time by the half-life time:
- n = time / half-life time
<u>a. A sample of Ce-141 with a half-life of 32.5 days after 32.5 days</u>
- n = 32.5 days / 32.5 days = 1 half-life
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<u>b. A sample of F-18 with a half-life of 110 min after 330 min</u>
- n = 330 min / 110 min = 3 half-lives
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<u>c. A sample of Au-198 with a half-life of 2.7 days after 5.4 days</u>
- n = 5.4 days / 2.7 days = 2 half-lives
Option D : Strong bonds in reactant molecules
Your nuclear reactor rots
Answer:
4.
Explanation:
Hello,
In this case, for the calculation of the degree of unsaturation, we apply the following formula:
Thus, since we have eight carbon atoms and twelve hydrogen atoms, it turns out:
It means that four substituents are missing in order saturate the molecule.
Regards.
