<u>Answer:</u> The correct answer is 4256 lb
<u>Explanation:</u>
We are given:
A numerical value of 1930 kilo grams
To convert this into pounds, we use the conversion factor:
1 kg = 2.205 lb
Converting the given value into pounds, we get:

Hence, the correct answer is 4256 lb
Answer:
96mg
Explanation:
Since the half-life of Palladium-100 is 4 days and the sample has been reduced after 16 days, that means the sample has undergone four half-lives. To find the intial mass, just work backwards:
- 6 x 2= 12
- 12 x 2= 24
- 24 x 2= 48
- 48 x 2= 96
As you see, I've worked backwards from the four half-lives. So the initial mass after 16 days is 96 mg.
The ph of the 1M solution of NaC2H302 is 9.37
D. squeezing of the esophagus
I think it would be migration. But I might be wrong.