The medical term nasopharyngitis is used specifically to refer to the swelling of the nasal passages (the nose) and the back of the throat.
<h3>What is nasopharyngitis?</h3>
It is associated with the rhinopharynx or nasopharynx, which is the sector of the pharynx that is next to the nostrils and above the back of the throat.
It is an inflammatory condition or a disease that is caused by the action of a virus in the upper respiratory system.
Therefore, we can conclude that the medical term nasopharyngitis is used specifically to refer to the swelling of the nasal passages (the nose) and the back of the throat.
Learn more about nasopharyngitis here: brainly.com/question/3522051
<h3><u>Answer;</u></h3>
A. <em>18 hydrogen atoms </em>
<h3><u>Explanation;</u></h3>
- <em><u>Alkanes are group of hydrocarbon that are saturated</u></em>. They are saturated in the sense that each carbon atom has maximum number of hydrogen atoms.
- <em><u>The homologous series of alkanes has a general formula of CₓH₂ₓ₊₂.</u></em>
- Therefore,<u><em> an alkane with 8 carbons will have; (2×8) +2 = 18 hydrogen atoms. </em></u>Thus, the formula of the hyrocarbon will be; C₈H₁₈.
