1. ________________ describes molecules in a compound or element while
formula units refer to the composition of ionic compounds.
2. The mole (abbreviation: mol) is the amount of substance equal to ________________
(Avogadro’s number).
3. Different substance has _______________masses but have the _______________ number
of particles and the same number of mole.
4. _______________ is the mass of 1 mol of atoms of an element. An element’s
molar mass in g/mol is numerically equal to the element’s atomic mass in amu
5. The mass of the substance divided by its molar mass gives the number of _______________.
6. The number of ________________ multiplied by Avogadro’s number gives the number
of particles.