Your answers are correct. I love the Universal formula.
Answer:
c) decongestants relive excessive muscle in nasal pathways
Answer:
a. 10.0 g
Explanation:
The molar mass of NaOH is 39.997 grams which was calculated by adding the molar mass of Sodium, Oxygen, and Hydrogen 
. But before we do anything with this number we must first convert 
molecules to moles. We can do this by dividing by Avogadro's number or 
( 
moles). We then convert moles to grams by multiplying by the molar mass of NaOH, (
grams). This is almost exactly 10 and the margin of error is likely due to the original numbers not being precise enough.
There are 3 significant figures in this value, all values before and after the decimal point are significant. As there is a decimal point, the zeros trailing are also significant.
Cl2 is the right answer since the molecule is composed of two chlorines.
