Question 10 1pt: Considering the atomic mass of sulfur, which isotope is the most abundant?
a) sulfur-32
b) sulfur-33
c) sulfur-16
d) sulfur-15
Question 11 1pt: Determine the total number of atoms in the formula for TNT (trinitrotoluene) =C7H5(NO2)3. Enter your answer as a whole number only.