1
A ratio of equivalent values used to express the same quantity in different units.
2
It's equivalent ot 6.02 x 10^23 particles
3
It's the mass in grams of one mole of any pure substance.
4
In a chemical formula they indicate how many moles of each element are present in 1 mol of the compound
5
Two or more atoms that covalently bond together to form a unit.
6
an SI base unit used to measure the quantity of matter.