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Shtirlitz [24]
3 years ago
15

What are alveoli and what do they do?

Chemistry
2 answers:
zlopas [31]3 years ago
6 0
Alveoli are tiny sacs within our lungs that allow oxygen and carbon dioxide to move between the lungs and bloodstream
Ilya [14]3 years ago
6 0
Are tiny sac with our lungs that allow oxygen and carbon dioxide to move between the lungs and blood stream
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ILL GIVE POINTS TO WHOEVER HELPS!!!
kirza4 [7]
Yeah no one is gonna read all that babe.
4 0
3 years ago
How many molecules are there in 2.30g of NH3
Vinil7 [7]

Answer:

8.13x10^22 molecules

Explanation:

We can use the Avogadro's number(6.022 x 10^23 units / mole)

2.30 g NH3 (1 mol / 17.03 g ) (6.022 x 10^23 molecules / 1 mol ) = 8.13x10^22 molecules

Hope this helps! Feel free to ask any questions!

6 0
3 years ago
Calculate each of the following quantities.<br> (a) mass in kilograms of 3.7 x 1020 molecules of NO2
HACTEHA [7]

Answer:

The answer to your question is:  0.028 kg of NO2

Explanation:

Data

3.7 x 10²⁰ molecules of NO2 in kg

MW of NO2 = 14 + (16 x 2) = 14 + 32 = 46 kg

                   1 mol of NO2 ---------------------  6.023 x 10 ²³ molecules

                   x                     --------------------- 3.7 x 10²⁰ molecules

                   x = 3.7 x 10²⁰ x 1 / 6.023 x 10 ²³

                   x = 0.00061 mol

         

                 1 mol of NO2 ---------------------  46 kg of NO2

                 0.00061 mol     ------------------    x

                 x = 0.00061 x 46/1

                x = 0.028 kg of NO2

7 0
4 years ago
What does electron have to do with color ? In one sentence
Goryan [66]

Electrons absorb energy, as they absorb energy they go from ground state to excited state and to return to ground state electrons release energy in the form of photons producing that color.

4 0
3 years ago
Why are some metals such as copper and aluminium not magnetic​
ioda

Answer:i dont know

Explanation:

I D

K

8 0
3 years ago
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