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ikadub [295]
3 years ago
6

How does a scientist explain something when a controlled experiment cannot be carried out

Chemistry
1 answer:
alina1380 [7]3 years ago
5 0
Usually the controlled experiment is the one that is not tested so they look at the experimental experiment to find the differences. Sorry if this doesn't answer your question.
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Why do you turn a C-terminal aminoacid's carboxyl group into an ester before reducing it to an alcohol? Why not just use LiAlH4
Troyanec [42]

Answer:

Esters are both inorganic and organic acids .... Regarding the second question, it is believed that it is carried out in this way in order to recognize the C-terminal amino acid in a peptide within a protein

Explanation:

The explanation of this question is according to what was interpreted in the question, since it is considered that it is poorly written ...

What happens in this chemical reaction is that it first becomes an ester (organic or inorganic acid) so that it is later recognized in the complex peptide structure.

4 0
3 years ago
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The mass of a silver bracelet is 2.5 gram, it occupies a volume of 48cm3, what is its density?​
NNADVOKAT [17]

Answer:

The answer is

<h2>0.052 g/cm³</h2>

Explanation:

The density of a substance can be found by using the formula

density =  \frac{mass}{volume} \\

From the question

mass = 2.5 g

volume = 48 cm³

The density is

density =  \frac{2.5}{48}   \\  = 0.052083333...

We have the final answer as

<h3>0.052 g/cm³</h3>

Hope this helps you

3 0
3 years ago
Everything in group 2 on the periodic table are called
Ludmilka [50]

Answer:

group two elements are called alkaline earth metals

Explanation:

Because their oxides form in the earth and are water soluble

3 0
2 years ago
PLEASE HELP!!!!! NEED THE ANSWER FAST!!!
PIT_PIT [208]
The answer is a. <span>changes in nucleotides of a DNA molecule that affect the genetic message.</span>
6 0
3 years ago
Please help y’all I don’t understand
VashaNatasha [74]

Answer:

D.

Explanation:

You try to get 8 electron on the outermost "shell" so you have no left over or "valence" electrons.

6 0
3 years ago
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