Integumentary<span> is the organ system that protects the body from various kinds of damage. </span>
Answer:
B. There is a very large percentage of C-12.
Explanation:
Hello there!
In this case, according to the given information, it turns out possible for us to realize that, since the average atomic mass is 12.01 amu, then the C-12, with an atomic mass of 12.000 am prevails over C-13 with an atomic mass of 13.003 amu as long as the average is nearer to the former.
In such a way, the answer will be B. There is a very large percentage of C-12.
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Nuclear i believe because it has nucleus in the sentence and also talk about it
The person walk 2346.95 meters in 35 minutes
<u><em>calculation</em></u>
convert miles to meters
that is 1 miles= 1609.34 meters
2.5 miles= ? meters
by cross multiplication = (2.5 miles x 1609.34 meters) / 1 miles= 4023.35 meters.
if 4023.35 meters = 1 hr= 60 min
? meters =35 min
by cross multiplication
= 4023.35 meters x 35 min/ 60 min =2346.95 meters
Answer:
The phosphorus ylide reacts with the aldehyde or ketone to make an oxaphosphetane.
Explanation:
The Wittig reaction is a reaction that occurs between a phosphorus ylide and an aldehyde or ketone. The final products are an alkene and triphenyl phosphine oxide.
The first step in the reaction is the attack of the phosphorus ylide on the aldehyde or ketone. This is followed by attack of oxygen on phosphorus to form a [2+2] cycloaddition product (oxaphosphetane) which decomposes to form the alkene and triphenylphosphine oxide.