Which of the following BEST describes a substance being dissolved?

Group of answer choices

What is the mass of 8 moles of sodium atoms

Word equation for k(s)+h2o(l) yield koh(aq) + h2(g)

The comparison of the number of atoms in a copper coin the size of a penny with the number of people on earth is made to illustrate which of the following? a. that atoms are indivisible b. that atoms are very small c. that atoms are very large d. that in a copper penny, there is one atom for every person on earth