What I Have Learned Determine the word/s that correctly complete s the statement. Write your answer on a separate sheet of paper. 1. The is the sum average of the atomic weights of the atoms in its empirical formula. 2. The molecular mass of a molecule is its average mass as calculated by adding the of the atoms in the molecular formula. 3. is the unit use to express formula mass. 4. Molecular mass is used for compounds. 5. is the unit use to express molecular mass. 6. The quantity of a substance which contains the same number of particles is called 7. The actual number of atoms in 12 g of Carbon-12 isotope is equal to particles, 8. In counting the number of atoms, we use a constant number called 9. The number of particles (atoms, molecules, ions) is equal to Avogadro's number 6.02 x 1023 in honor of the scientist 10. In converting mass, number of moles of atoms or vice versa scientist use​