If the half-life of a sample of a radioactive substance is 30 seconds, how much would be left after 60 seconds? <span>A. one-fourth</span>
Which of the following molecules has a characteristic broad stretch at 3300 cm-1?
1 answer:
Answer:
The answer is "Option A"
Explanation:
At 3300 cm-1, the wide region is equal to OH. It is a possible group of alcoholic features that includes drugs. In the given choices option a is correct that's the structure can be defined in attachment file please find it, and the wrong choice can be defined as follows:
- In choice B, It is wrong because it doesn't include OH.
- In choice C, it uses the triple bond, that's why it is wrong.
- In choice D, it uses the two bonds, that's why it is wrong.
- In choice E, it uses the characteristic bond, that's why it is wrong.
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If the half-life of a sample of a radioactive substance is 30 seconds, how much would be left after 60 seconds? <span>A. one-fourth</span>