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NemiM [27]
3 years ago
8

When looking across the periodic table from left to right, which is the first group that contains nonmetals?

Chemistry
2 answers:
Westkost [7]3 years ago
7 0

It would be group 1 because of hydrogen but since it's not there the other group is group 14.

ehidna [41]3 years ago
5 0

Answer:

When looking through the periodic table from left to right, the first group containing nonmetals is 14.

Explanation:

When looking through the periodic table from left to right, the first group containing nonmetals is 14.

The groups are classified as follows:

I: alkaline (<em>hydrogen does not enter in this classification</em>)

II: alkaline earth

III to XII: transition metals

XIII: Boron Series (Halogen)

XIV: Carbon Series

XV: nitrogen series

XVI: oxygen series

XVII: fluorine series

XVIII: noble gases

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Ilia_Sergeevich [38]

Answer:

a. Gly-Lys + Leu-Ala-Cys-Arg + Ala-Phe

b. Glu-Ala-Phe + Gly-Ala-Tyr

Explanation:

In this case, we have to remember which peptidic bonds can break each protease:

-) <u>Trypsin</u>

It breaks selectively the peptidic bond in the carbonyl group of lysine or arginine.

-) <u>Chymotrypsin</u>

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With this in mind in "peptide a", the peptidic bonds that would be broken are the ones in the <u>"Lis"</u> and <u>"Arg"</u> (See figure 1).

In "peptide b", the peptidic bond that would be broken is the one in the <u>"Phe"</u> (See figure 2). The second amino acid that can be broken is <u>tyrosine</u>, but this amino acid is placed in the <u>C terminal spot</u>, therefore will not be involved in the <u>hydrolysis</u>.

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3 years ago
What do you think would be the most challenging part of investigating a fire or explosion crime scene? Why?
Lena [83]

Answer:

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Explanation:

7 0
3 years ago
The absolute temperature of a gas is increased four times while maintaining a constant volume. What happens to the pressure of
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Explanation:

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The pressure is decreased by a factor of four, the new pressure is a quarter of the formal pressure of the gas.

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