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ira [324]
2 years ago
14

In what layer of the skin is melanin found? What does melanin do for skin cells?

Chemistry
2 answers:
dem82 [27]2 years ago
7 0
Dont know the first part but melanin quantities change the dkin color
andriy [413]2 years ago
7 0
Melanin is found in the basal layer of the epidermis. It is produced by the oxidation of the amino acid tyrosine. is absorbs light a and effects skin color.
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The decomposition of water into hydrogen gas Hy and oxygen gas Oz can be modeled by the balanced chemical equation
ASHA 777 [7]

Answer:

D. ) 2H2O - 2H2 + O2

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2 years ago
If the order of a reaction with the regard to reagent A is 2, when the concentration of A doubles, the rate will
Anarel [89]

Answer:

Rate will double

Explanation:

Since the concentration of A is doubling the rate of reaction will also double, since in this scenario concentration is proportional to rate of reaction. So if the concentration of A were to triple the rate of reaction would also triple.

3 0
2 years ago
Draw a condensed structure of each of the following
MrRa [10]

The condensed structure of given compounds are shown in the below image.

<h3>What is functional group?</h3>

Functional group is the specific group which is present in an organic compound gives information about the properties of that compound.

  • In 1,2-propanediol compound hydroxyl functional group is present on the 1st and 2nd position.
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  • In Dichloromethane, two atoms of chlorine groups are present.

Hence, structure of the given compounds are shown in the below image.

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2 years ago
Los fenomenos fisicos son cambios permamentes en la materia?
alexgriva [62]

Answer:

Explanation:

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5 0
3 years ago
Question
madam [21]

Answer:

The specific heat of the metal is 2.09899 J/g℃.

Explanation:

Given,

For Metal sample,

mass = 13 grams

T = 73°C

For Water sample,

mass = 60 grams

T = 22°C.

When the metal sample and water sample are mixed,

The addition of metal increases the temperature of the water, as the metal is at higher temperature, and the  addition of water decreases the temperature of metal. Therefore, heat lost by metal is equal to the heat gained by water.

Since, heat lost by metal is equal to the heat gained by water,

Qlost = Qgain

However,

Q = (mass) (ΔT) (Cp)

(mass) (ΔT) (Cp) = (mass) (ΔT) (Cp)

After mixing both samples, their temperature changes to 27°C.

It implies that , water sample temperature changed from  22°C to 27°C and metal sample temperature changed from 73°C to 27°C.

Since, Specific heat of water = 4.184 J/g°C

Let Cp be the specific heat of the metal.

Substituting values,

(13)(73°C - 27°C)(Cp) = (60)(27°C - 22℃)(4.184)

By solving, we get Cp =

Therefore, specific heat of the metal sample is 2.09899 J/g℃.

5 0
3 years ago
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