Atomic and molecular mass

At the end of this activity, students should be able to:
– quote the law of conservation of mass and explain it on the basis of the particularity of matter
– explain the terms: atomic mass and molecular mass
– read the atomic masses of elements from the periodic table
– calculate the molecular masses of chemical compounds
– obtain information about the quantitative composition of chemical compounds from their molecular formulae
– use the different ways of representing the composition of substances.