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Karolina [17]
3 years ago
8

A synthetically-produced narcotic medication, drug, or agent similar to the opiate morphine, but not derived from opium; used to

relieve pain
Chemistry
1 answer:
Otrada [13]3 years ago
4 0
A synthetically-produced narcotic medication, drug, or agent similar to the opiate morphine, but not derived from opium; used to relieve pain
Yes
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assume you have a 500 g sample of a radioactive isotope with a half-life of 100 years. fill in the table showing how many grams
sweet-ann [11.9K]

Answer:

8.10 hours.

Explanation:

You start with 500.0g.

After the first half-life, you have 250.0g.

After the second, you have 125.0g.

After the third, you have 62.50g.

Therefore, it takes three half-lives to decay to 62.50g.

Therefore, the elapsed time must be triple the length of one half-life.

24.3

3

=

8.10

, so it is 8.10 hours.

Explanation:

3 0
3 years ago
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An automated filling machine is used to fill bottles with liquid detergent. A random sample of 20 bottles results in a sample va
taurus [48]

Answer:

No, there is no evidence that the manufacturer has a problem with underfilled or overfilled bottles, due that according our results we cannot reject the null hypothesis.

Explanation:

according to this exercise we have the following:

σ^2 =< 0.01 (null hypothesis)

σ^2 > 0.01 (alternative hypothesis)

To solve we can use the chi-square statistical test. To reject or not the hypothesis, we have that the rejection region X^2 > 30.14

Thus:

X^2 = ((n-1) * s^2)/σ^2 = ((20-1)*0.0153)/0.01 = 29.1

Since 29.1 < 30.14, we cannot reject the null hypothesis.

4 0
3 years ago
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Wat are representative elements
AnnyKZ [126]
In chemistry and atomic physics, the main group is the group of elements whose lightest members are represented by helium, lithium, beryllium, boron, carbon, nitrogen, oxygen, and fluorine as arranged in the periodic table of the elements
7 0
2 years ago
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As the concentration of hydrogen ions in solution increases, what happens to the pH? 1.Fluctuates up and down 2.stays the same 3
bonufazy [111]
3. Decreases
The concentration of hydrogen ions increasing creates an acid, which is 7 or below on the pH scale. If the pH value lessens from 7 to create an acid, that would mean it decreases.
8 0
3 years ago
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How many molecules are in 11.75 moles of water (H2O)?​
AnnZ [28]

Answer:

7.07585×10^24 molecules

Explanation:

# of Moles X Avogadro's Number= # of  Molecules

5 0
2 years ago
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