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3 years ago

What does the squamous (flattened) epithelial cell do?

2 answers:

8 0

Squamous epithelial cells are flat and are usually found lining surfaces that require a smooth flow of fluid such as your blood vessels, or lining areas that require a very thin surface for molecules to pass through, such as the air sacs in your lungs.

vodka [1.7K]3 years ago

6 0

The squamous cell epithelium forms a barrier between the body and the exterior environment. The cells also provide protection for the underlying tissues

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]If a sample of pure iodine contains 4.69 x 1022 atoms of iodine, how many moles of iodine are in the sample? A=0.08 B=0.13 C=7.

Lorico [155]

It is B, and also for a moment I didn't understand that 4.69 x 10^22. I almost did this whole problem wrong.

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3 years ago

Read 2 more answers

How many moles of oxygen are produced when 29.2 g of water is decomposed according to H20 H2 + O2

Katarina [22]

8.1moles

Explanation:

Given parameters:

Mass of water to be decomposed = 29.2g

Unknown:

Number of moles of oxygen.

Solution:

To solve this problem, we first write the balanced reaction equation :

2H₂O → 2H₂ + O₂

Now convert the given mass of the water to number of moles;

Number of moles of water = $\frac{mass}{molar mass}$

Molar mass of water = 2(1) + 16 = 18g/mol

Number of moles of water = $\frac{29.2}{18}$ = 16.2moles

From the balanced reaction equation:

2 moles of water produced 1 mole of oxygen gas;

16.2 mole of water will produce $\frac{16.2}{2}$ = 8.1moles of oxygen gas

learn more:

Number of moles brainly.com/question/1841136

#learnwithBrainly

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4 years ago

What is the pH of a 0.028M solution (pH= -log(M)) A) 3.56 B) 2.88 C) 1.55 D) 1

kupik [55]

Answer:

1.55

Explanation:

-log(M)=pH

- Hope that helps! Please let me know if you need further explanation.

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3 years ago

Why are there 2 bonds holding the oxygen atoms together?

tino4ka555 [31]

Answer:

Because Oxygen shares 2 electrons with mutual bond interaction forming covalent bond . thus it is diatomic due to K shell 2 electrons mutual sharing .

Explanation:

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3 years ago

Please help i will mark brainliest which helps bring up youre rank

Elis [28]

Answer:

push or pull

Explanation:

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3 years ago