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laiz [17]
3 years ago
11

What are the four body systems that are involved of getting oxygen in our cells ?

Chemistry
1 answer:
Alex17521 [72]3 years ago
8 0

Answer: The cells that make up the digestive, muscular, skeletal, reproductive, and excretory systems all need oxygen from the respiratory system to function, and the cells of the respiratory system—as well as all the other systems—need nutrients and must get rid of metabolic wastes.

Explanation:

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How many hydrogen atoms are in 7.80 mol of ammonium sulfide?
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The number  of hydrogen atoms that are in 7.80 moles of ammonium sulfide are  3.756 x 10^25  atoms


<u>calculation</u>

Step  1:  calculate  the  moles of H  in  (NH4)2S

 since there are 8 atoms of  H in (NH4)2S  the moles of

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 Step  2: use of Avogadro's law  constant  to  determine the number  of  H atom

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  • cross  multiplication

= [ 62.4  x 6.02 x10^23]/  1 mole= 3.756  x10^25    atoms

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