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4 years ago

Which layer of the epidermis is most actively involved in replacing exfoliated skin cells?

Chemistry

2 answers:

olya-2409 [2.1K]4 years ago

8 0

Answer: Basal layer

Explanation:

Epidermis of thick skin has five layers. Different layers of the skin serves different function. The outermost layer is basal which is generally removed by exfoliation.

There are several layers of keratinocytes at the surface of the epidermis. The topmost layer sheds usually because it is dead. It is replaced by stem cell that tends to divide in the basal layer.

iris [78.8K]4 years ago

5 0

The Basal layer is the answer

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Based on their activation energies and energy changes and assuming that all collision factors are the same, which of the followi

babymother [125]

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3 years ago

Liquids have a density greater than 1 g/m? Sometimes true? True? never true?

kirza4 [7]

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Explanation:

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4 years ago

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2 years ago

Which are the more common types of solutions?

aniked [119]

Hey there! :

1) Solid Solutions

Solid solutions are formed only by solutes and solid solvents. In everyday life, the main examples of this type of solution are metallic alloys.

2) Liquid Solutions

Liquid solutions have liquid solvent, usually water, and solutes can be solid, liquid or gaseous.

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4 years ago

There are eight consitutional isomers with the molecular formula C4H11N.

Dmitriy789 [7]

Answer:

See figure 1

Explanation:

We have to remember that in the isomer structures we have to change the structure but we have to maintain the same formula, in this case $C_4H_1_1N$ .

In the formula, we have 1 nitrogen atom. Therefore we will have as a main functional group the amine group.

In the amines, we have different types of amines. Depending on the number of carbons bonded to the "N" atom. In the primary amines, we have only 1 C-H. In the secondary amines, we have two C-N bonds and in the tertiary amines, we have three C-N bonds.

With this in mind, we can have:

-) Primary amines:

1) n-butyl amine

2) sec-butyl amine including 2 optical isomers

3) isobutyl amine

4) tert-butyl amine

-) Secondary amines:

5) N-methyl n-propyl amine

6) N-methyl isopropyl amine

7) N, N-diethyl amine

-) Tertiary amines:

8) N-ethyl N, N-dimethyl amine

See figure 1

I hope it helps!

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3 years ago