Answer:
Any nucleus that has an overall spin quantum number of zero (I=0) is NMR inactive
Explanation:
A wide range of nuclei are found to be NMR active. NMR is the acronym for nuclear magnetic resonance. It is a powerful spectroscopic tool which uses radio waves. The nuclear spin is described by the nuclear quantum number I and can take on values of; 0,1/2, 1, 3/2,2,5/2 etc.
Any nucleus that has an overall spin quantum number of zero (I=0) is NMR inactive e.g Carbon-12 and Oxygen-16 nuclei.
Commonly, all NMR active nuclei posses I ≥ 1/2, Hydrogen -1 , Carbon-13 and boron-11 are common examples of NMR active nuclei.
The molecules become more "active" or free to move
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Answer:
Why is the growing human population a cause for concern?
ALL OF THE ABOVE....
Explanation:
correct me if im wrong: )
Answer: The correct number of significant figures in
is 35.05152.
Explanation:
Digits present in a number that helps in determining the degree of accuracy starting from the first non-zero digit is called a significant figure.
Some rules for significant figures are as follows.
- All the digits present within the non-zero digits are considered in a number.
For example, 2085 contains 4 significant digits.
- Leading zeros are not counted in a number.
For example, 0.0034 has 2 significant digits.
- We count the trailing zeros when a decimal point is present in a number.
For example, 0.02500 has 4 significant figures.
- When there is no decimal point then trailing zeros may or may not count.
For example, 19000 has 2 significant digits.
Now, the product of given digits is as follows.
![7.68 \times 4.564 = 35.05152](https://tex.z-dn.net/?f=7.68%20%5Ctimes%204.564%20%3D%2035.05152)
Thus, we can conclude that correct number of significant figures in
is 35.05152.
Answer: plants and animal cells
Explanation: